Good suggestion from Kunch, but I'm a GUI guy I'm afraid and not at home in the terminal. I had made a disc image of Resdient Evil just using Toast, which seemed to work fine, but I have 2 problems:
1. The reultant file was very large - how could this be compressed and would GP2XPSX support it?
2. The method didn't work quite so well for Ridge Racer, as that had 2 sessions on the CD, one for the data and one for the Music. Toast looked like it had done it, but there was no CD music when playing on the GP2X, so it obviously missed the 2nd session.
I've tried using Disk Utility, but it hangs when a PSX disc is inserted, it can't seem to get a grip on the CD, what more user friendly OSX methods might I try?
The emulator is great though, this and the Amiga emulator have really amazed me!
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