What to do if the video cannot be read from USB/SD?

Recently some customers gave the feedback that when playing movies via USB/SD, the player says "Does not support video codec" or "Does not support video resolution" because the player only supports 576P AVI/MPG/FLV/VOB/DAT/DIVX -Video files supported and AVC/H.264 encoding or MKV/MP4 files are not supported. You can refer to the following form.

You can also use this video converting software to convert your video to support. The operation method is also described in the link.
Here is the software: https://mega.nz/#!YB8jmZpK!ZzBfDbYvX5hLzSXleAHf3OcjKhu3a9r2D_KbxH7JgIk