High Definition Network Hard Disk Player. High definition video files playback with DVI and YPbPr output(up to 1080p). *WMV9,MPEG4/ 2/ 1, Opendivx, Xvid,RMP4. External subtitle(.SUB,.SRT,.SSA,.SMI). *Audio: MP3, WMA, AAC, ITUNE, AC3, OGG, PCM. Output: L/R,OPTICAL.