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.

DVDs, no matter how carefully they’re stored, are deteriorating. Very quickly. Even the optical drive needed to watch DVDs is now obsolete on Macs. But once the DVDs are converted into digital files ...