Last year the Linux media player Amarok created a demo LiveCD using CC licensed music from the WIRED CD. In the meantime Amarok developers have added many features and have now added access to Magnatune within the player. (We’ve mentioned Magnatune here many times, but for new readers, it is an innovative record label that uses CC licensing, see our interview with the founder.)
Songbird is another innovative media player, and one that supports Windows, Mac, and Linux. It includes access to CC Search via a sidebar and can “play” any web page with music links. The screenshot below shows Songbird playing recent remixes on ccMixter.
Check out the Amarok post on the Magnatune blog for screenshots of that integration.