if you mean your local listing in "My Media" - you can "refresh" it by deleting the .dbb files in the DB folder.
if you delete them, all your edits in "My Media" are gone! iknow no possibility to backup/restore them.
- you must close Morpheus first
- delete the data1024.dbb and data256.dbb (you could make a backup first)
- restart Morpheus - it builds new dbb files, scanning all the shared folders including the MP3 tags.
but i think Morpheus is only able to handle ID3V1 and not ID3V2 tags.
id you d/l a mp3 and change the tags permanently, you actually "make" a new file, which is not used as "multisource" anymore.
indy