Summary: The ZK500 Kicker erases albums on my Zune. I finally figured out what was going on after reading another customer review. I thought the Kicker was freezing up(because it wouldn't play)...in reality the album had been erased so there was nothing to play. It sounds great when it's playing but it is extremely frustrating to have it quit playing and then find out that the album you were playing has been erased from your Zune.
Summary: I bought this and the day after recieving I decided to try it out at home before takiing it to work. Had it on for about 2-3 hours, sound quality was great but after the 2-3 hour period it stopped playing, when I looked at it the zune was showing it was playing but it was frozen on the last song that played. I went into the zune menu and it showed I had nothing on the zune.