A:Answer The supported video formats on the LG HD 720p LED TV - 28" Class (27.5" Diag), Model # 28LJ400B are: Maximum: 1,920 x 1,080p @ 30p (only Motion JPEG 640 x 480 @ 30p) ••.mpg, .mpeg [Video] MPEG-1, MPEG-2, MPEG-4 [Audio] MPEG1/2/2.5 Layer3, AC3, AAC, LPCM ••.avi [Video] MJPEG, MPEG-4, H.263, XViD, H.264, MPEG-1, MPEG-2 [Audio] MPEG1/2/2.5 Layer3, AC3, AAC, LPCM ••.ts [Video] MPEG-2, H.264, HEVC [Audio] MPEG1/2/2.5 Layer3, AC3, AAC, LPCM ••.mov, .mkv [Video] MPEG-4, H.263, H.264, HEVC, MPEG-1, MPEG-2, XViD [Audio] MPEG1/2/2.5 Layer3, AC3, AAC, LPCM ••.dat [Video] MPEG-1, MPEG-2 [Audio] MPEG1/2/2.5 Layer3, AC3, AAC, LPCM ••.mp4 [Video] MPEG-4, H.264, MPEG-1, MPEG-2 [Audio] MPEG1/2/2.5 Layer3, AC3, AAC, LPCM ••.vob [Video] MPEG-1, MPEG-2 [Audio] MPEG1/2/2.5 Layer3, AC3, AAC, LPCM ••.3gp [Video] H.264, MPEG-4 [Audio] MPEG1/2/2.5 Layer3, AC3, AAC, LPCM ••.flv [Video] H.264 [Audio] MPEG1/2/2.5 Layer3, AC3, AAC, LPCM ••Some codecs may not be supported depending on model. ••Some subtitles created by users may not work properly. Streams containing GMC (Global Motion Compensation) or Qpel (Quarterpel Motion Estimation) are not supported. Only H.264/AVC profile levels 4.1 and lower are supported. ••Video files that exceed 50 GB (Gigabyte) are not supported for playback. The file size limit is dependent on the encoding environment. ^CP