I give up... What is the significance of the highlighing I see in TagsRevisited? Some lines have no highlighting, others may be highlighted in light blue, yellow, or (some not-so-horrid shade of) red. But I can't figure out why.
Although it does seem that if a line is yellow, I am not able to save any editing I've done. That ought to be a clue, but I don't get it.
Main file list: background color alternates between white and a light blue.
Tag list: headers have a light blue background, tag fields have a white background.
Yellow background: a field or file that has been changed since loading the tag (also through the auto-correction options).
Ugly red background: file seems corrupt. You can show stream details by selecting an option in the "View" menu. It's usually that the tag at the beginning of the file has a specified length, but the first mp3 audio frame is not following directly afterwards, but at a later point. Might be that some encoders do it that way, I decided to warn the user before I finally know if this can be regarded as corrupt or not.