URGENT PLZ HELP

[mp3mp3mp3]

I have bought a mp3 player from the far east the only mp3's it plays are ones that have been recorded as 64kbps.

If i try to play mp3's in either 16,24,32 or 54 kbps it sounds like goobeldegook.

All the mp3's I have are under 64kbps and i need some way of converting them or else ill need to turn all 650mg of mp3's to audio cd's...the biggest nightmare.

Can anyone tell me of any software which i can download which can do this for me.

Thanks in advance for your reply