The HD-A1 HD DVD player delivers outstanding resolution, bright, vivid colors and stunning sound from the next generation DVD standard adopted by the DVD forum. The HD-A1 is backwards compatible with standard DVDs and allows you to enjoy your existing collection of DVDs. The HD-A1 offers Video Up-conversion via the HDMI interface which scales the standard DVD video to output resolution of 720p or 1080i, matching the output to the resolution of your HDTV. And with the built in multi-channel decoders for Dolby? Digital, Dolby? Digital Plus, Dolby? TrueHD (2ch), DTS and DTS-HD, the HD-A1 will bring improved fidelity and sonic realism to your DVD movie soundtracks.