Q: A friend of ours photographed and videoed our wedding ceremony several weeks ago and gave us a DVD with JPG and MOV files on it. The JPEG images are fine, but we can't play the MOV videos, and for ...

If you are unable to open an MP4 file on our media player, try changing the video format. There are many good video converters available on the internet that can help you convert your MP4 to MP3, AVI, ...

MOV is not one file format but rather a format envelope that can be made up of any of dozens of codecs, resolutions, and frame rates from basic DV through H.264, HEVC to ProRes, and other pro formats.