LG DM2350D Owner's Manual page 105

Video Replay Issues
❐
✎ Some subtitles created by users may not work properly.
✎ The video and subtitle files should be placed in the same folder. Assign the
same names to the video and subtitle files for proper display.
✎ 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.