Archos Jukebox 20 GB Digital Audio Player/Recorder/Hard Drive 500277 Dual 20 GB digital audio player and hard drive Stores over 330 hours of CD-quality music, or approximately 500 albums 2 MB memory buffer stores from 30 to 100 seconds of music to prevent interruptions USB 2.0 interface for transfer rate up to 480 Mbps Supports MP3 files; Windows and Mac compatible