TOC Perfect CD Player Menu Swap Trick By Modifying ISOs

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alexfree
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TOC Perfect CD Player Menu Swap Trick By Modifying ISOs

Post#1 » Tue Oct 12, 2021 8:22 pm

It is VERY HARD to time the swap trick to use the backup CD-R’s TOC and not the legit game CD’s TOC. If you can’t time it like a magician the TOC will be wrong, and you’ll experience crashes in game, or no audio. And you can not time it to use the right TOC with the CD player menu swap trick, it will always use the original legit game’s TOC. This is because the CD Player Menu swap trick is the only one which you swap the real PSX game with the burned one while the real PSX game is not moving and stopped in the drive.

I am a collector of specific PlayStation 1s, the earliest ones from 1995. I got an October 1995 PlayStation (fully working, replaced the KMS-440AAM to a PSone reproduction KMS-440BAM). I just recently found a September 1995 PlayStation with the only issue being the CD drive does not reliably read games, so I’ll replace the drive in that as well.

On my October 1995 PlayStation, I do the CD player menu swap trick to swap a TonyHAX boot cd, and then swap a backup when booted in the TonyHAX boot CD. So I got thinking…

Is it possible to modify an existing game, like this:
- Change SYSTEM.CNF to boot into a modified TonyHAX.exe (keep the TOC/CUE the same)
- Have the modified TonyHAX.exe read the real original game’s SYSTEM.CNF (which is on the modified ISO as SYSTEM2.CNF) which then points to the real game .EXE on the ISO.
- Have perfect game audio/TOC after just doing the swap trick.

I tried with Tekken (1995 original release) and sure enough, it works! I can use an original game with 1 track, and swap in a game like Tekken with 27 audio tracks which has working audio!

I’m looking into this more but figured I’d share my current findings…

alexfree
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Re: TOC Perfect CD Player Menu Swap Trick By Modifying ISOs

Post#2 » Wed Oct 13, 2021 12:25 pm

I've successfully implemented the ReadTOC command into the TonyHAX Loader and bypassed the "SwapCD Now" function in the loader so the lid no longer needs to be "opened" (removing the thing blocking the lid sensor) and closed while the TonyHAX loader is running, so the TonyHAX loader screen is completely automatic and goes directly into Tekken.

Still working out some things but this is good progress.

alexfree
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Re: TOC Perfect CD Player Menu Swap Trick By Modifying ISOs

Post#3 » Fri Oct 22, 2021 1:46 am

I believe I have gotten everything for Tekken working perfect. I have figured out a way to distribute these modified ISOs, I can create a FLIPS (https://www.smwcentral.net/?a=details&i ... &p=section) patch that can be applied to the DATA track 1 bin file, making a Tekken RIP magically work perfectly with all audio just by doing the CD player swap trick and nothing else (not even unjamming/closing the lid is required, but you can do so if you want and multi CD games would also work just like normal TonyHAX allows).

Going to experiment with more games and post some patches/instructions on doing this.

alexfree
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Re: TOC Perfect CD Player Menu Swap Trick By Modifying ISOs

Post#4 » Fri Oct 29, 2021 10:02 pm

I have come up with a script to automatically modify PSX games to work perfectly with the correct TOC after using the swap trick, will be posting soon all info on this soon.

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mistamontiel
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Re: TOC Perfect CD Player Menu Swap Trick By Modifying ISOs

Post#5 » Sat Oct 30, 2021 10:30 am

UniROM+caetla my mane. Freedom

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