RioDVD is a full featured and easy to use DVD player integrating all functions of a standard DVD player. It can play DVD, VCD, SVCD Movies, with many most advanced features, such as S/PDIF output ,Multi-Speakers, Digital Zoom, Video Desktop etc. Features : Keep Aspect Ratio, Pan&Scan . Digital Zoom. Bookmarks for DVD/VCD/SVCD. Play DVD Content from a Hard Drive. Hardware decode acceleration. Video Desktop. Hi-Fi audio. Dolby Pro Logic II. S/PDIF. MPEG-2 audio and LPCM. Audio Multi channels. DVD-Video, DVD-ROM, DVD-RAM, DVD-RW, DVD+RW, VCD1.1, VCD2.0, SVCD, DVD from hard disk