QUOTE (paulgj @ Oct 3 2011, 22:13)

Hello,
is there a fairly simple way of replacing all ALBUM ARTIST tags to ALBUMARTIST? without changing any data already associated with the former format?
I'm trying to get my FLAC files up to standard tag settings and AFAIK ALBUMARTIST without the space is the correct format.
Thanks for any help!
-Paul
To make this correction universally, for a large number of files, I'd make an action group that creates the ALBUMARTIST tag and then deletes the unwanted ALBUM ARTIST tag all at once.
1. Create a new action group, with any name you want (like Album Artist -> AlbumArtist)
2. The first action creates the new AlbumArtist tag, filled with the data from the Album Artist tag.
Action: Format Value
Field: AlbumArtist
Format string: %album artist%
3. The second action removes the Album Artist tag.
Action: Remove fields
Fields to remove: Album Artist
Now, simply select all the files you want and run this action on them.