[Dustpuppy]

THis might help.

I use a patch called Psone.ppf can find it at megagames. Do not use use the Ps1full.ppf

Some games that I backup won't work on my Ps1 but works fine on a old psx. If I use the Psone.ppf and burn it then it will work on my Ps1 also.

Try it on the old backups, I think it can solve your problem.