What ripper program are you using? I have imgBURN and has not given me any problems converting my discs to ISO/IMG. Check your CFW and your popstation and also google for compatibility list. I use the current version of PSX2PSP and I already played 10 of my PSX games on my 3.80 m33 CFW and this is for the fat PSP. No problem so far, I also have the rare copy of Jojo's bizaare adventure for PSX and I'm playing it on my PSP
