Sony DRX800UL External USB 2.0/i.Link Double/Dual Layer & Dual Format DVD Recorder External Dual Format DVD Burner Dual interface--High speed USB 2.0 and i.Link/Firewire Works with 4.7GB DVD+/-R/+/-RW and 8.5GB double/dual layer discs Record up to 4 hours of video One year limited warranty