I have an external drive with thousands of MP3 audio files. I can make changes to any of the tags on those files nearly instantly. I also have 300 MP4 movies on that same drive. The movies do not currently have any tag information filled out, which makes it a challenge when I want to watch a movie on my movie player, so I thought I would try using MP3Tag to add the title field. The movies are all relatively large - ranging in size from 125MB to 4GB.
When I tried adding a title tag, it took close to 5 minutes for it to save the change. I saw in the FAQ that it can be very slow when writing ID3V2, so I unchecked ID3V2 in the Options dialog and tried again in the hopes that it would only change the ID3V1 (I only need the Title Tag for these files).
It's just as slow (5:14 for the most recent change). Is there a trick to doing MP4 movies so that they save at a reasonable speed? Am I asking too much from MP3Tag? Right now I'm basically making a change to a single movie and walking away from the computer. At this rate it will take a month to add a title to all the movies.