Wired News reports that Napster 2.0 and the iPod don’t play nice together: “With its relaunch on Thursday, Napster, the most notorious name in music downloads, will collide with the hottest music player on the market, the iPod. That’s because music downloaded from Napster will not be playable on Apple’s insanely popular iPod. The newly legal Napster service and the iPod use incompatible file formats… Napster 2.0 is joining an ever-growing field of paid music services like Musicmatch and BuyMusic.com. These download services offer songs in Windows Media Audio, or WMA, format, the same format used by Napster.”