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12-14-18 12:19:30 PM

Jul - General Game/ROM Hacking - Reading CHD file / Atari file system New poll - New thread - New reply
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shdw-knt
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Posted on 11-20-17 01:37:18 PM Link | Quote

So I am looking at changing the in game music / audio tracks in Atari's California Speed.

I have the sit down arcade and changing the music will add to the game.. I got the .chd figuring I would test that before messing with my hard drive in the game.

I have extracted the .chd to iso/img but nothing I can find will mount the image or allow me to read it.

from what I can find its possibily a raw bit data read and or atari's proprietary file system.


Has anyone got any information on how I can read the drive/access the files to poke around at changing the audio tracks?
divingkataetheweirdo

Bandit
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Posted on 11-26-17 01:39:23 PM Link | Quote
Ferrox on TCRF would know how. CHDMAN presumably allows you to look into these compressed images, but it's not easy to find good documentation on this thingy.
shdw-knt
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Posted on 11-30-17 11:27:59 AM Link | Quote
So - CHDman is very straight forward.. using it I was able to uncompress the chd and turn it into an img file.

However once mounted, the image is unreadable. The research I came up with states it is because 2 possible reasons:

1.) Atari file system - its own propriatery data format not readable by current iso standards
2.) The data is a straight binary dump and its feed directly to the arcade boards

In either case Im in way over my head for what I can do with the file.. kinda sucks I just wanted to swap the audio / music tracks to liven the game up a bit

Thanks I will reach out to the guy.
shdw-knt
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Posted on 11-30-17 11:40:47 AM Link | Quote
He doesnt seem to be registered.. do you have any other contact info for him?
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Jul - General Game/ROM Hacking - Reading CHD file / Atari file system New poll - New thread - New reply




Rusted Logic

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