A:Answer The supported video files on the ENERGY STAR® Qualified LG 1080p Smart LED TV - 50" Class (49.6" Diag), Model # 50LH5730 are: .asf, .wmv (VC-1 Advanced Profile (except WMVA, VC-1 Simple and Main Profiles); .3gp, .3gp2 (H.264/AVC, MPEG-4 Part 2); .avi (XVID-except for 3 warp-point GMC), H.264/AVC, Motion JPEG, MPEG-4 Part 2; mp4, .m4v, .mov (H.264/AVC, MPEG-4 Part 2, XVID, HEVC; .mkv (MPEG-2, MPEG-4 Part 2, XVID, H.264/AVC, VP8, VP9, HEVC; .ts, .trp, .tp, .mts, .m2ts (H.264/AVC, MPEG-2, HEVC ); .vob ( MPEG-1, MPEG-2); .mpg, .mpeg, .mpe ( MPEG-1, MPEG-2); .rm, .rmvb (RV30, RV40). A video file and its subtitle file must be located in the same folder. For subtitles to be displayed properly, make sure that the video file and the subtitle file have the same name. Streams that include Global Motion Compensation (GMC) and Quarterpel Motion Estimation (Qpel) are not supported. Playable file sizes may vary depending on the encoding conditions. Video files created by some encoders may not be played. Video files in a different format than specified may not be played properly. Video files stored on a USB storage device that does not support High Speed may not be played properly. DTS codecs are supported only for playbacks of USB and HDMI video files...^IFV