Good free programming for converting music files

[him61]

Hello everyone.

I have an ancient 128 MB creative muvo MP3 player with only 20 songs on it. I have a couple of really long songs that take up a lot of space. So, I need a program that will convert these files into a playable format, that will take up less space.

Thanks in advanced

Edit: Oops, title error corrected.

[DanU]

Have you tried MediaCoder? Free and open source:
http://mediacoder.sourceforge.net/