putting mame emu and roms in thepsp

I just downgraded the psp to 1.5 I have my genesis snes and nintendo on the psp now I'm trying to put the mame,psone and nintendo 64 emulators and roms on there. any suggestion thanks

What's your question exactly?

Mame doesn't seem to work all that well on PSP for some reason. I read somewhere that any game whose bit rate isn't 8 doesn't seem to work.

ok cool what about psone and nintendo 64 emulators for a regular psp 1.5. I 'm trying to put them on my psp

It's the same story with N64 emus really. There are tutorials on how to rip PSX ISOs and get them working.