How to use Groups

[simoncn]

CONTENTGROUP has no specific meaning and has traditionally been used in iTunes for various purposes. This could be identifying the work to which a track belongs or it could be some other form of grouping, similar to Genre.

When designing MinimServer support for grouped works, I decided not to use CONTENTGROUP for this purpose because some users might be using this tag for another purpose. I thought it would be safer to create a new tag and I chose GROUP as the name of this this new tag.

Also, GROUP has some restrictions on where/how it can be used and CONTENTGROUP doesn't have any restrictions. This is another reason for not using CONTENTGROUP for MinimServer grouping .

There is no problem in having CONTENTGROUP and GROUP tags set to identical values if you want to use both of these. Another possibility is to tag one of these and use the "default" option of the tagValue property to set the other.