Questions about tag formatting limitations

[simoncn]

With the intended use of groups this should not be an issue. A group would usually be something like a concerto containing three files for the movements. Most tags would be the same for all items in the group, (e.g., work, artists, instruments and rating) and the group would usually be browsed, selected and played as a whole.

It appears you are using groups for a different purpose that requires drilling down into the group to browse and select its contents. Perhaps you would find it preferable to use some other grouping tag name of your choice for this purpose.