I've been using Puddletag[1] on Linux as an Mp3tag replacement and it works quite well. 1. https://docs.puddletag.net/. - Source: Hacker News / 11 days ago

Puddletag also has an autotagging feature https://docs.puddletag.net/. Source: over 2 years ago

I use Puddletag . It bills itself as similar to MP3Tag, but it definitely has a search and replace tool which can be to specific tags recursively across directories. Source: almost 3 years ago

First, I use PuddleTag for tagging / managing my library. Out of the box it's good, but if you set up your own patterns it can become a very fast, consistent tool that is excellent. Source: about 3 years ago

EasyTag, PuddleTag, and MusicBrainz Picard are all good ones... EasyTag is probably the oldest, most common, and is in most distro's repos or thrid party add-on repose (also has a Nautilus compatible file manager extension). Source: about 3 years ago

As others have said, Handbrake doesn't passthru cover art or thumbnail images. If you wished to add cover art to a Handbrake encoded video file, use MetaX. It's not free, but will add cover art and text that Plex, iTunes etc. Will all recognize. Source: almost 2 years ago

MetaX tags videos, adding cover art, genres etc. And allows you to specify a chapter interval and create chapters to fit the length of each file. It will tag a single file or a batch of files in a single process. MetaX is not free. Source: over 2 years ago

MetaX works great on MKVs on Windows. You can find it here: http://danhinsley.com/metax/metax.html. Source: almost 3 years ago