Updating media information and album art use rowupdating
Find a media file with incorrect details or cover art.
Right-click on the title and select Find album info.
You’ll be prompted to confirm your selection, then click Finish.
You should now see your media file displayed properly in Windows Media Player.
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Visit Stack Exchange I keep my audio files tagged in windows media library. Album Arts(thumbnails) are not updated in the media library.
But correct album arts are displayed while playing the media.
On the Find album information window, click Edit under Existing Information.However, there are times when you'll need to look further afield in order to successfully populate your music collection with the right CD covers.You may, for example, have a digital music collection that is mainly made up of a lot of old analog recordings that you have—digitized vinyl records and cassette tapes, for example.I think the album art thumbnails are cached by wmp. These files contain the album art that was automatically downloaded by WMP, so it might be a good idea to back them up first.
If you can't see these files, make sure that Explorer is set to show hidden files and folders, and to show protected operating system files. The songs for which you manually deleted the old, cached album art should get updated with their new, embedded art.Then there's rare compilations, bootleg recordings, and promotional material—album art for these types of audio collections are almost impossible to find using common methods that automatically add metadata tags; MP3 tagging software and music management programs for instance that have built-in ID3 tools.