alex-free.github.io

The Ultimate Backup CD-R/Import Disc Loader Soft-Mod Solution For The Original PlayStation & Early Models Of PlayStation 2

Brought to you by Alex Free, MottZilla, Patchouli (karehaani), and Sylverrez. Built on the work of many others.

Tonyhax International is a fork of the Tonyhax “Software backup loader exploit thing for the Sony PlayStation 1” originally created by Socram8888. Tonyhax International is developed by Alex Free and MottZilla with many new features and upgrades compared to the original Tonyhax, some of which are listed below:

• Supports all PS1 Consoles (Japanese, American, European, SCPH-1000-SCPH-102) and Early PS2 Consoles (Japanese, American, European, SCPH-10000-SCPH-39004).

• Supports starting the Tonyhax International loader with GameShark Codes and any PSX cheat device using the new GameSharkHAX boot method.

• Supports flashing the Tonyhax International backup/import loader to a GameShark, Action Reply, or similar PSX cheat cartridge. Whenever the flashed cartridge is plugged into the back of a PSX console model with a cartridge port on the back when you power it on the Tonyhax International will boot instead of the shell program/BIOS (Sony screens/CD Player/Memory Card Manager).

• Supports more save game exploits, enabling the use of even more PSX game discs to start the Tonyhax International loader.

• Supports more games being booted via the FreePSXBoot exploit successfully. The downside is that before starting any backup or import disc in the loader YOU MUST REMOVE THE FREEPSXBOOT MEMORY CARD to ensure successful booting of your backup or import disc. THIS APPLIES TO BOTH SLOT 1 AND SLOT 2 FREEPSXBOOT CARDS.

• Supports more games with additional copy protection routines, by using a completely different anti-piracy bypass system.

• Uses a completely different build system that is portable to many more Linux distributions. This new build system is more efficient and easier to use as well.

Usage

Japanese PS1 Consoles (SCPH-1000-SCPH-100)

• Japanese PS1 Console Loader Instructions
• Playing Games That Span Multiple Discs On Japanese PS1 Consoles

Japanese PS2 Consoles (SCPH-10000-SCPH-39000)

• Japanese PS2 Console Loader Instructions
• Using the Swap Magic Tool
• Playing Games That Span Multiple Discs On Japanese PS2 Consoles
• Playing PAL Region Games On Japanese PS2 Consoles

American/European PS1/PS2 Consoles (SCPH-1001-SCPH-39004)

• American/European PS1/PS2 Console Loader Instructions
• Playing Games That Span Multiple Discs On American/European PS1/PS2 Consoles
• Playing PAL Games On American PS2 Consoles
• Playing Japanese/American Games On PAL PS2 Consoles

Boot Methods

• GameShark Code
• Flashed Cheat Cartridge - ROM/ROM Flasher CD
• FreePSXBoot Exploit Memory Card Images
• Boot CD
• Save Game Exploit

More Info

• Playing Games With Additional Copy Protection Routines
• CD-R Media For PSX Backups
• Disc Read Errors And PS1 CD Drive Repair
• Building From Source
• Credits

External Links

• Tonyhax International Homepage
• Tonyhax International GitHub
• PSX-Place Thread
• PSX-Place Tonyhax International Resource
• CDRDAO-PLED - recommended burning software for Linux.
• PSXDEV Thread
• GBATemp https://gbatemp.net/members/sylverrez.610331/ Thread
• APrip Homepage - patches some later PSX games with additional anti-piracy copy protection.
• PS1 DemoSwap Patcher Homepage - a similar project that uses the Tonyhax International loader.
• PSEXE2ROM Homepage - what generates the Tonyhax International ROM file.
• FreePSXBoot - an exploit used in a Tonyhax International boot method.
• Tonyhax (the original) Github - what Tonyhax International is based on (International is not an official version).
• Tonyhax (the original) Homepage

Downloads

Version 1.2.0 (3/17/2023)

• tonyhax-v1.2.0-international

Changes:

• Fixes lockup/freezing that only occurred in specific games (i.e. Tekken 3) when using the FreePSXBoot exploit boot method. Now however, Before starting any backup or import disc in the loader YOU MUST REMOVE THE FREEPSXBOOT MEMORY CARD to ensure successful booting of your backup or import disc. THIS APPLIES TO BOTH SLOT 1 AND SLOT 2 FREEPSXBOOT CARDS. This enables more games to work through this boot method and simplifies the loader. The loader will tell you to remove the FreePSXBoot memory card as well now.

About previous versions.

Usage

The Tonyhax International loader is the program that once started enables the use of backup CD-Rs or import PS1 discs. The Tonyhax International loader can be booted with a [flashed cheat cart] (flashed-cheat-cart.md), a flashed memory card, a save game exploit, a CD-R, or even a GameShark Code. The Tonyhax International loader provides the ability to properly play backup CD-R and ‘imported region discs’ on all PS1 consoles, and all supported early PS2 consoles (Japanese, USA, and PAL models SCPH-10000-SCPH-39004).

If you are using any Japanese console, at least one real Japanese NTSC-J PS1 game disc is required (any officially licensed Japanese PS1 disc will do). If you are using a Japanese PS2 console (SCPH-10000-SCPH-39000) a Swap Magic Tool is also required. Neither of these are needed if you are using an American or European PS1/PS2 console.

Japanese PS1 Console Loader Instructions

Start the Tonyhax International loader with a supported boot method:

• GameShark Code
• ROM/ROM Flasher CD
• FreePSXBoot Memory Card Images
• Boot CD
• Save Game Exploit

If you see the text Put in a real NTSC-J PSX game disc, then block the lid sensor:

• Open the CD drive of your PS1 console.
• Put in a real NTSC-J Japanese PS1 game disc in the CD drive, but don’t close the CD drive lid.
• The lid sensor is highlighted by the red circle and arrow in the pictures below. On the original grey fat PS1 consoles (SCPH-900X and earlier) it is located in the top right corner, it is is shaped like a circle. Ideally you press it down with a bent pen spring as shown. On the slim PSone consoles (SCPH-10X) it is in the lower right corner to the side of the edge of the CD drive. For these consoles it is best to use a piece of tape or paper to slide in and press it down as shown.

After blocking the lid sensor, your real Japanese PS1 game will spin up and then stop. Once you see the text Put in a backup/import disc, then press X remove either the real NTSC-J PSX game disc or Boot CD from your PS1 console’s CD drive. Put in the backup CD-R or import PSX game disc you want to play without unblocking the lid sensor. Once you press X, the console will run some commands automatically, followed by the game booting with perfect CD audio playback. Note that you can not unblock the lid sensor while playing the game on Japanese consoles, if you do so the game will stop working.

Playing Games That Span Multiple Discs On Japanese PS1 Consoles

There are some games which span multiple discs. And some of these games (such as Parasite Eve, Fear Effect, and Crono Cross) that span multiple discs require you to open the CD drive, remove disc 1, insert disc 2, and close the CD drive at some point in the game without providing a save game option at the disc swap. If you encounter this type of game on a Japanese PS1 console you have to do the “mid-game hot-swap trick”:

• When the game asks you to insert disc 2, unblock the lid sensor and remove the CD.
• Put any real authentic Japanese PSX disc into the PS1 drive.
• You will now be performing a mid-game hot-swap trick. Have the disc 2 you want to play in one hand, and whatever your using to block the lid sensor in another. Now block the lid sensor, freeing your one hand. Wait until the original real Japanese PSX disc stats spinning fast (~3 seconds) and immediately swap the disc with your free hand, and put in the actual disc 2 you want to play. You can now continue playing your game that spans multiple discs normally! This trick would work for games that span even more then 2 discs as well.

It is important to note however that most games that span multiple discs allow you to load a game save created on disc 1 while playing disc 2. This means you just need to save at the last point possible on disc 1, and then you can just boot disc 2 like normal and load your game save created earlier on disc 1. Some games however do not allow this as previously mentioned, so for those games you must use the mid-game hot-swap trick described above.

Japanese PS2 Console Loader Instructions

Start the Tonyhax International loader with a supported boot method:

• Boot CD (I don’t know of anyway to boot this on an unmodified Japanese PS2 but it is available).
• Save game exploit
• GameShark Code

Japanese PS2 consoles must have the DVD drive tray front panel removed to use Tonyhax International. For the SCPH-10000, you can follow the method below (some newer consoles may slightly differ in the way to remove the DVD drive’s front panel).

Removing The DVD Drive Tray Front Panel

Turn on the Japanese PS2 console. Eject the DVD drive tray, and while it is open power off the console by either pulling the plug from the wall or PSU in the back of the console, or by flicking the power switch for the PSU on the back of the console. You can not use the power button because then the DVD drive tray will close before the console turns off. Now, flip the Japanese PS2 console upside down like in the image below:

Now bring your focus to the bottom of the opened DVD drive tray. At the very top edge (highlighted in the picture above) is a tab. You want to jam a thin flat head screwdriver in between this tab and the DVD drive tray face plate as shown in the image below. Now, push with the flat head screwdriver to separate the DVD drive face plate from the rest of the DVD drive tray. Be very gentle and only use a direct straight force towards the face plate. Do not go side to side when doing this or you risk breaking off an edge of the DVD drive tray. I am obviously not responsible for any damage you may do by doing this! Once successful, the face plate will become removable. You are free to slide it back on at a later time, it just needs to be off for you to use the Japanese PS2 to boot backup/import PS1 games with Tonyhax International.

With the DVD drive face plate off, flip over the Japanese PS2 console right side up. You can now see a gap at the bottom of the DVD drive. This is where you place the Swap Magic Tool in when using Tonyhax International on your Japanese PS2 console.

You can now use one of the supported boot methods to start the Tonyhax International loader on the Japanese PS2 console. You will most likely be using the Save Game Exploit, however you could be using some kind of intermediate boot disc to boot the Boot CD as well if you find one that supports Japanese PS1 consoles. Once you see the text Put in a backup/import disc, then press X appear, you need to use a Swap Magic Slide Tool to release the DVD drive to gain access to it without pressing the eject switch. A video tutorial is available that shows how to use the Swap Magic Tool (in general), although the exact steps are also explained below. Once you use the Swap Magic Tool to swap in your import/backup CD-R while booted in the Tonyhax International loader, just press the cross button on your PS2 or PS1 controller to boot and play your game.

Important note: do not eject the PS1 import or backup CD-R from the Japanese PS2 console until your done playing the game. Unlike American and European consoles (which do not have this limitation), if you do so your game will stop working, and you will have to start Tonyhax International all over again to boot your import/backup CD-R and start playing again.

Using the Swap Magic Tool

Slide in the Swap Magic Tool like shown in the image below by the arrow. You need to feel around with the Swap Magic Tool to get the hook to latch on internally inside the DVD drive.

Now that your Swap Magic Tool is latched on internally inside the DVD drive, move it straight to the right side. This movement will feel correct and nice when you are properly using the Swap Magic Tool, reassuring you are using it correctly. Once you get to the end of this movement the DVD drive tray will begin to move forward out of the DVD drive, “releasing” it from it’s locked state.

Use your hand to pull out the DVD drive tray to gain access to the disc in it. Remove the original NTSC-J PSX game disc, and put in your import/backup CD-R.

With your import/backup CD-R in the Japanese PS2 console, use your hand to push in the DVD drive tray as far as it will go back into the DVD drive.

Now that the DVD drive tray is pushed all the way back in, the Swap Magic Tool can be used to “lock” the drive. Like before, slide in the Swap Magic Tool to the right most position like shown in the image below. Remember to feel around with the Swap Magic Tool to get the hook to latch on internally inside the DVD drive. Now that your Swap Magic Tool is once again latched on internally inside the DVD drive, move it straight to the left side. This movement will feel correct and nice when you are properly using the Swap Magic Tool, reassuring you are using it correctly. Once you get to the end of this movement (when you can’t go any more to the left) the DVD drive tray will fully go back inside the DVD drive to put the DVD drive into the “locked” state.

Playing Games That Span Multiple Discs on Japanese PS2 Consoles

There are some games which span multiple discs. And some of these games (such as Parasite Eve, Fear Effect, and Crono Cross) that span multiple discs require you to open the CD drive, remove disc 1, insert disc 2, and close the CD drive at some point in the game. Unfortunately only for Japanese PS2 consoles, you can not do this with Tonyhax International. If you get to a point in a game that requires ejecting the drive and putting in a new game, you have to play this part of the game on a different console (Any PS1 or American/European PS2 works). It is important to note however that most games that span multiple discs allow you to load a game save created on disc 1 while playing disc 2. This means you just need to save at the last point possible on disc 1, and then you can just boot disc 2 with Tonyhax International like normal and load your game save created earlier on disc 1, bypassing this limitation for certain games that allow saving right at disc swap mid-game.

Playing PAL Region Games On Japanese PS2 Consoles

The early PS2 models that Tonyhax International supports have the PS1 mode which runs PS1 software hard-coded to NTSC video mode. This can cause a problem with Tonyhax International if you want to play a European/PAL PS1 backup CD-R or import disc on a Japanese PS2 in PAL video mode. Since PS1 software can not change the video mode correctly from PS1 mode running on a PS2, you have to resort to the PS2 homebrew software known as PSVModeNeg. This software allows you to explicitly change the video mode to PAL. An older version of PSVModeNeg is required if you want to use it’s effects with Tonyhax International, specifically v1.0.1. This version simply inverses the current video mode of the console, rather then reading the PS1 game disc to figure out what video mode the disc itself expects. Here are the steps below to change your Japanese PS2 console to PAL video mode for Tonyhax International:

• Download PSVModeNeg v1.0.1 and extract the file PS1VModeNeg.elf.
• Copy the file PS1VModeNeg.elf to a FAT32 formatted USB flash drive that works with your soft-modded PS2. You can soft-mod your PS2 with FreeHDBoot, FreeDVDBoot or FreeMCBoot to be able to use PS1VModeNEG on your PS2 console.
• Using uLaunchELF or wLaunchELF load the PS1VModeNeg.elf file from the mass device (your flash drive).
• Put in the real Japanese PS1 game disc that you are using with a save game exploit. when in PS1VModeNeg. The video mode will be forced to PAL now in the PS1 mode of your Japanese PS2.
• Playing through your Japanese PS1 game disc may look or act weird in PAL video mode, ignore this. Just get to the exploit method and start Tonyhax International. Put in a PAL region import disc or PAL region backup CD-R and the PAL PS1 game will boot in PAL video mode.

American/European PS1/PS2 Console Loader Instructions

Start the Tonyhax International loader with a supported boot method.

Available boot methods for American and European PS2 consoles:

• Boot CD.
• Save game exploit
• GameShark Code

Available boot methods for American and European PS1 consoles:

• GameShark Code
• ROM Flasher CD
• FreePSXBoot Memory Card Images
• Boot CD
• Save Game Exploit

Once you see the text Put in a backup/import disc appear, eject the DVD drive (PS2) or open the CD drive (PS1).

• If you are booting the Tonyhax International Boot CD, you’ll want to remove the spring or whatever you have blocking down the lid sensor to “open” the CD drive and stop the disc from spinning, allowing you to remove the Boot CD from the console’s CD drive (PS1) or DVD drive (PS2).
• If you are booting Tonyhax International via a Save Game Exploit, after ejecting the DVD drive (PS2) or opening the CD drive (PS1) the real PS1 game disc you used with a save game exploit will stop spinning, allowing you to remove it from the console’s CD drive (PS1) or DVD drive (PS2).

All other boot methods don’t have a disc usually in the drive already, so there is no disc to remove. With no disc currently in your console, you can now put in the backup CD-R or import PSX game disc you want to play. Close the CD drive (PS1) or DVD drive (PS2). The console will detect that the drive has been closed and will spin up your disc. The console will then send some commands and boot the disc.

Playing Games That Span Multiple Discs On American/European PS1/PS2 Consoles

All American and European consoles do not have the same limitations as the Japanese consoles and can play games that span multiple discs like normal.

Playing PAL Games On American PS2 Consoles

The early PS2 models that Tonyhax International supports have the PS1 mode which runs PS1 software hard-coded to NTSC video mode. This can cause a problem with Tonyhax International if you want to play a European/PAL PS1 backup CD-R or import disc on a American PS2 in PAL video mode. Since PS1 software can not change the video mode correctly from PS1 mode running on a PS2, you have to resort to the PS2 homebrew software known as PSVModeNeg. This software allows you to explicitly change the video mode to PAL. An older version of PSVModeNeg is required if you want to use it’s effects with Tonyhax International, specifically v1.0.1. This version simply inverses the current video mode of the console, rather then reading the PS1 game disc to figure out what video mode the disc itself expects. Here are the steps below to change your American PS2 console to PAL video mode for Tonyhax International:

• Download PSVModeNeg v1.0.1 and extract the file PS1VModeNeg.elf.
• Copy the file PS1VModeNeg.elf to a FAT32 formatted USB flash drive that works with your soft-modded PS2. You can soft-mod your PS2 with FreeHDBoot, FreeDVDBoot or FreeMCBoot to be able to use PS1VModeNEG on your PS2 console.
• Using uLaunchELF or wLaunchELF load the PS1VModeNeg.elf file from the mass device (your flash drive).
• Using uLaunchELF or wLaunchELF load the PS1VModeNeg.elf file from the mass device (your flash drive).
• Put in the real American PS1 game disc that you are using with a save game exploit. when in PS1VModeNeg. The video mode will be forced to PAL now in the PS1 mode of your American PS2.
• Playing through your American PS1 game disc may look or act weird in PAL video mode, ignore this. Just get to the exploit method and start Tonyhax International. Put in a PAL region import disc or PAL region backup CD-R and the PAL PS1 game will boot in PAL video mode.

Playing Japanese/American Games On PAL PS2 Consoles

The early PS2 models that Tonyhax International supports have the PS1 mode which runs PS1 software hard-coded to NTSC video mode. This can cause a problem with Tonyhax International if you want to play a Japanese/American PS1 backup CD-R or import discs on a PAL PS2 in NTSC video mode. Since PS1 software can not change the video mode correctly from PS1 mode running on a PS2, you have to resort to the PS2 homebrew software known as PSVModeNeg. This software allows you to explicitly change the video mode to PAL. An older version of PSVModeNeg is required if you want to use it’s effects with Tonyhax International, specifically v1.0.1. This version simply inverses the current video mode of the console, rather then reading the PS1 game disc to figure out what video mode the disc itself expects. Here are the steps below to change your PAL PS2 console to NTSC video mode for Tonyhax International:

• Download PSVModeNeg v1.0.1 and extract the file PS1VModeNeg.elf.
• Copy the file PS1VModeNeg.elf to a FAT32 formatted USB flash drive that works with your soft-modded PS2. You can soft-mod your PS2 with FreeHDBoot, FreeDVDBoot or FreeMCBoot to be able to use PS1VModeNEG on your PS2 console.
• Using uLaunchELF or wLaunchELF load the PS1VModeNeg.elf file from the mass device (your flash drive).
• Put in the real PAL PS1 game disc that you are using with a save game exploit. when in PS1VModeNeg. The video mode will be forced to NTSC now in the PS1 mode of your PAL PS2.
• Playing through your PAL PS1 game disc may look or act weird in NTSC video mode, ignore this. Just get to the exploit method and start Tonyhax International. Put in a NTSC disc and the NTSC PS1 import or backup disc will boot in NTSC video mode.

CD-R Media For PSX Backups

Only use high-quality CD-R media for PSX backups. If you want good results burning backups for your PS1 your CD-R media should contain:

• High quality dye (SuperAZO, AZO, or Phthalocyanine).
• A highly reflective layer system.
• High quality polycarbonate and “sealing” process combining all parts of the CD-R.

Ideally, you want to use 74 minute discs. The PSX was never designed for the now more common 80 minute discs, and it is easier for the laser to track 74 minute discs due to their wider data spiral track. As of 2023, 74 minute discs are not really manufactured anymore and new old stock can get pricey, so it really may not be worth it as the PSX can read 80 minute discs fine. It just can read 74 minute discs easier as that is closer to what it was designed for originally (which was 72 minute pressed CD-ROMs).

I have found Verbatim DataLifePlus CD-Rs to be really good with PS1 consoles. Here is the ATIP information displayed by cdrecord -atip for a Verbatim DataLifePlus CD-R:

ATIP info from disk:
  Indicated writing power: 4
Disk Is not unrestricted
Disk Is not erasable
  Disk sub type: Medium Type A, high Beta category (A+) (3)
  ATIP start of lead in:  -11077 (97:34/23)
  ATIP start of lead out: 359848 (79:59/73)
Disk type:    Long strategy type (Cyanine, AZO or similar)
Manuf. index: 11
Manufacturer: Mitsubishi Chemical Corporation

Verbatim UltraLife Archival Grade Gold CD-Rs also are really good, although they are more expensive then Verbatim DataLifePlus. I think Verbatim DataLifePlus CD-Rs are slightly better with the PS1 as well, but they are an option. Here is the ATIP information displayed by cdrecord -atip for a Verbatim DataLifePlus CD-R:

ATIP info from disk:
  Indicated writing power: 5
Disk Is not unrestricted
Disk Is not erasable
  Disk sub type: Medium Type B, low Beta category (B-) (4)
  ATIP start of lead in:  -12520 (97:15/05)
  ATIP start of lead out: 359849 (79:59/74)
Disk type:    Short strategy type (Phthalocyanine or similar)
Manuf. index: 26
Manufacturer: TDK Corporation

Do not use cheap/poor quality CD-R media, which is almost always all that is available in retail stores and most likely any CD-R that is not “archival grade”. Poor quality cheap CD-R media can result in:

• Slower loading times/in-game lag because of CD drive tracking errors (bad noises from the CD drive).
• Issues reading data off of the disc possibly resulting in a game to freeze and motor power off in the CD drive.
• Skipping/silent audio and or music.

Later PS1 consoles (starting at the SCPH-5000 series and newer) and all PS2 consoles have a much greater tolerance to poor quality CD-R media, and may work fine with it however in general it is still best to just always use Verbatim DataLifePlus/UltraLife CD-Rs or something of similar quality. Here is the ATIP information displayed by cdrecord -atip for a Maxell Music CD-R (which is a poor quality brand/CD-R media that is highly not recommended.

ATIP info from disk:
  Indicated writing power: 4
Disk Is unrestricted
Disk Is not erasable
  Disk sub type: Medium Type A, low Beta category (A-) (2)
  ATIP start of lead in:  -12508 (97:15/17)
  ATIP start of lead out: 359845 (79:59/70)
Disk type:    Short strategy type (Phthalocyanine or similar)
Manuf. index: 22
Manufacturer: Ritek Co.

If you are having issues booting discs in Tonyhax International, consider wiping with a clean microfiber cloth from the inner ring to the outer edge of the disc in all directions and then trying to boot the disc again.

Building From Source

Obtain the complete Tonyhax International current source tree from GitHub using git, using the command below:

git clone --recursive https://github.com/alex-free/tonyhax

Next, install all the required dependencies:

• git
• autoconf
• automake
• g++
• make
• libtool
• texinfo
• help2man
• ncurses-devel
• libtinyxml2-devel
• cmake
• cdrdao
• python3
• python3-pip (and numpy, which is installed via this command: pip3 install numpy)

If you are running Fedora or Debian (Windows Subsystem For Linux can run these operating systems on Windows to provide a sufficient build environment), you can download the build dependencies automatically with the get-deps.sh script found in the scripts folder of the Tonyhax International source tree. For any other OS, you’ll need to find the above packages and install them manually yourself.

Next, you need to build the tool-chain. Execute the build-tool-chain.sh script, which is found in the scripts directory of the source tree. This will take some time to build, depending on how fast your computer is.

With everything now installed, build Tonyhax International with the build.sh script found in the scripts directory of the Tonyhax International source tree. After you build Tonyhax International a release .zip file will be generated in the root of the source directory.

Credits

MottZilla

• Guidance on increasing the size of the Tonyhax International loader.

• Wrote the GameShark Code Engine now used by the anti-piracy bypass features and explained how to use it.

• The original sole creator of PS1 DemoSwap Patcher v1.0. MottZilla re-implemented the TOCPerfect concept into a much superior method, and included his implementation alongside of his DemoSwap idea in PS1 DemoSwap Patcher.

• Wrote the controller input support for Tonyhax International.

• Wrote the laser re-calibration function for VC2 and VC3 CDROM controllers.

• Developed the first Japanese save game exploit for Crash Bandicoot 2.

• Developed the PS-EXE loader used on GameShark/cheat cartridges to run Tonyhax International.

• Came up with reset+unlock technique for TOCPerfect booting on USA/PAL consoles.

• Helped debug the FreePSXBoot builder’s own patch to disable a FreePSXBoot memory card in slot 2.

• Originally came up with the idea to involve the SetSession 2 command in a fix for the older CDROM controllers.

• Explained the save game checksum routines in both Tony Hawk Pro Skater 2 (Japanese version) & Castrol Honda VTR (Japanese version) to help me create SuccessCheckSumUpdater (SuccessCU).

• Explained to myself how to find/port save game exploits to new games or to different versions of games available in different regions (i.e. Japanese version).

Patchouli(karehaani)

• Doki Oki (Japan) save game exploit.

• Crash Bandicoot 3 (Japan) save game exploit.

• The Lengend Of Heroes I&II (Japan) save game exploit.

• Tekken 3 Japan/USA/PAL save game exploits (based off of previous work by krystalgamer).

• Tekken 2 Japan (rev 1 only)/USA (rev 0 only)/PAL save game exploits (based off of previous work by krystalgamer).

• Downhill Snow (Japan) save game exploit.

Sylverrez

• Helping with debugging an APrip issue on Windows.

• Contributing APrip GameShark codes to be added to the Tonyhax International loader.

Misc Acknowledgements

• Berion of PSX-Place compressed the images of this document properly (this is the first time I’ve edited photos).

• Martin Korth for confirming the SetSession bug found in VC0A, VC0B, and VC1A CDROM controller BIOS versions, and for the priceless PSX-SPX document.

• Peppe90 of PSX-Place for testing NTSC gamems on a PAL PS2. His results have confirmed that the video mode can not be changed from PS1 software in PS1 mode on a PS1. It must be changed in PS1DRV from the PS2, as PS1 mode is set to always display the same video mode that the console shipped with (for the early PS2s that Tonyhax International supports). He mentioned that PS1VModeNeg v1.0.1 can be used to overcome this. The original Tonyhax issue explaining this also was helpful in figuring out how to bypass this PS2 level limitation.

O.G. Tonyhax Acknowledgements

Socram8888 is the original developer of the Tonyhax loader. The original Tonyhax loader credits are below, in alphabetical order:

• Alex Free for adding the boot CD image.
• ChampionLeake for documenting the Brunswick exploits at PlayStation dev wiki.
• Gerardo Rodriguez for suggesting Cool Boarders 4 on a YouTube comment.
• @FMecha for suggesting Castrol Honda VTR on Twitter.
• John Wilbert Villamor (aka Lameguy64) for creating mkpsxiso.
• Jose Silva for adding support for Sports Superbike II and XS Moto.
• Martin Korth for his super awesome technical documentation page that was vital for the development of this project, as well as for developing the no$psx emulator that was also essential for debugging.
• Patrick Vogt for testing on multiple development PS1 consoles.
• Everyone that’s reported the issues on GitHub and helped Socram8888 make it better.