I've downloaded psx4droid and wipeout rom. it asks for a BIOS file upon loading of the app. it opens up SD card and when I click on the wipeout folder its empty, yet it isn't when I use my file manager. what am I doing wrong?
The BIOS is a required file for the emulator to work... just like a PSX emulator for PC. I'd recommend doing some research in to playstation emulators... as they require a bit more than SNES, NES, Genesis, etc...