In the case of Final Fantasy 9, some people crash at places while playing with CDs. I can't verify because I used only ISOs, but I personally did not crash once while I played the forty hours or so to beat it in ePSXe. If that doesn't work, you could try an older plugin from Pete (1.47 is what I used to finish FF 9).
thx, of all the other comments, this is the only one that makes sense to me (no offense to the others, but I don't really understand everything else). I'll try that. BTW, I'm amazed that my little string actually made this many readers and repliers! I guess this is what makes emuforums.com so great to use. That plus alot of caring users helping each other out. Thanks to all the epsxe users and administrators of this message board! KEEP IT UP!!!