... )USB portUSB2.0function7EQ, A-B repeat, ID3, firmware upgradeadditionalrecord, E-book, games, image view, U-diskplay timeaudio 4~8h, video 1 ... ,7599,752Comatible of MP4Operating SystemFile TransferWindows Vista®YesWindows ReadyBoost™NoWindows XP (SP1, SP2)YesWindows 2000 (SP4)YesMac OS X v.10 ...