I've just built a very cheap secondhand PC to act as a type of music server for our phone system. The output from the sound card goes straight into the system as hold music etc. I just need to know what the best application for playing continuous MP3's is. We'll have a list of about 500 MP3's and we just want them selected randomly in a kind of never ending loop.

Any suggestions will be tried, it's going to be fun at work today testing music all day