I normally use iTunes as my music player, but have encountered a couple of problems. The biggest one at the moment is that the program won't start and comes up with an error message "iTunes cannot run because it has detected a problem with your audio configuration."
I've not knowingly changed settings on my pc unless something is conflicting with it.
Prior to this (when it was working), when a new track started the first few seconds would be jumpy and distorted, which was a shame because I liked the way the track listing moved seamlessly between tracks.