Can multimann load PS1/PS2 games in .cso ?

Discussion in 'PS3 - Hacking & Homebrew' started by Elliander, Feb 24, 2013.

  1. Elliander

    Elliander GBAtemp Fan

    Sep 16, 2011
    United States
    Can multimann load PS1/PS2 games in .cso? Specifically speaking, if I used "PSP ISO Compress" to comress a non-PSP ISO file would it run? If so, how high should the compression rate be to avoid lag? If not, is there a PS2 or PS1 compression tool that I can use to decrease file sizes?

    EDIT: Using "PSP ISO Compress" didn't work. It stopped responding and created an empty .cso file. So what program, if any, would work?
  2. Cyan

    Cyan GBATemp's lurking knight

    Global Moderator
    Oct 27, 2002
    Engine room, learning
    As far as I known, there's no way to compress PS1/PS2 ISO.
    PS1 even have to maintains all informations (such as sub-channels) for some anti-piracy protection with emulators. I don't know if the PS3 is working with these protected ISO.

    PS1 are not that big.
    On PS2, to decrease the file size, it was often done by replacing movies with a dummy movie file and rebuilding the ISO. (or sometime re-compressing movies to fit a DVD9 to DVD5, like with Xenosaga)
    Elliander likes this.
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