Emulator Not Finding Roms. erom1 &erom2 Not Found?

[FFNerdKid]

Recently, I've discovered the wonderful world of play station emulating and have been bringing my my favourite old old PS1 games back to life well on the computer.

However, I tried the PSCX emulator to emulate Guitar Hero II (inorite? why would you even bother with this? well it's the only ps2 game at my house right now! *sadface*), and it tells me that erom's are not found. Could that be the file-type? As it is in the form of a .mdf file as opposed to a '.elf' file or a '.iso' file.

I noticed this question was rasied before while I was google-ing away for a sollution however the asker had breached the terms of service of the forum.

Thanks

[Bositman]

http://forums.pcsx2.net/thread-2298.html#Bios
You should read the guide before asking questions. Anyway the emulator can work without those bios part files too.