USB storage: build in internal flash enables it as USB 2.0 storage. Only 10MB capacities, it can easily connect to any USB HOST port, no external power supply needed. Video format: RM, RMVB, AVI, DIVX, MKV, MOV, HDMOV, MP4, M4V, PMP, AVC, FLV, VOB, MPG, DAT, MPEG, TS, TP, M2TS, WMV (H.264, H.263, WMV9 or VC-1, MPEG1 or 2 or 4). Audio format: MP3, WMA, OGG, AAC, FLAC, APE, AC3, DTS, ATRA Video decoding formats: RM, RMVB, AVI, DIVX, MKV, MOV, HDMOV, MP4, M4V, PMP, AVC, FLV, VOB, MPG, DAT, MPEG, TS, TP, M2TS, WMV, (H.264,H.263,WMV9 or VC-1,MPEG1 or 2 or 4) SD or SDHC reader: Directly read SD or SDHC card, and play or manage files on TV, can read SD or SDHC card also on computer. File management: can manage the files in devices connected to, manage delete or copy between each others. It will auto resume when plugged back in and it could be running all the time and loop automatically Support Repeat, Zoom, FF, BF, Rotate functions. Support HDMI, CVBS, and YPbPr video output. Support external subtitles: SRT or ASS(UTF8,GBK,BIG5,etc.) M2T ISO