Hi, I have a NWA808 video walkman. I use AAC files encoded in itunes (128kbps) and quite regularly the player will skip a fraction of a second of a song, typically about 7 or 8 seconds into the song, but it can happen at anytime, for example a couple of seconds after viewing the album art of the song playing. It seems to only happen with AAC files, not the few mp3s i have on it, and doesn't happen on every song. It's hard to describe, but it's a noticable jitter in the song playing. A bit like a personal cd player jumping when knocked. I'm suprised to find no-one else has this problem as it would seem to be more like a problem with the way the player handles aac files as opposed to my unit being faulty, but you never know. PS. It's running the 1.02 firmware. I hope someome else can confirm/dismiss this problem as i need to decide whether to get a refund or a replacement.