How to play mp3s on my dreamcast?

I have downloaded a file called dcmp3.zip. It says it allows me to play my mp3 files on my dreamcast. I had to insert my utopia boot cd and then swap my mp3 cd with the dcmp3 unzipped files burned in the cd. However, it didn't work. Is it because i have an old version of the boot CD? I have version 1.1. Is there a new version of utopia bootcd and where can i find it? Plz help thanx!