Did you click the "Multi-artist" box in the tag entry area?

Well, Grip's multi-artist feature doesn't change the Disc Artist tag, it just adds artist infor to the track name. I have Grip configured to create music directories based on Artist/Album, so all of this music would wind up under "Various".

Yes, year, too. I just bought a used 4-CD "Beach Music Anthology" for one song ("Searching for My Love" - Bobby Moore and The Rhythm Aces, 1966). Left to it's own devices, Grip would mark every one of these 90+ songs as 1996.

So, for compilations, I'm going through the somewhat time-consuming process of editing artist/year/title and ripping/encoding in Grip one song at a time.

One not-so-great side effect of this approach to compilations is that I'm encountering "artist bloat" -- my artist view is getting crowded with one-hit wonders. I need to build more custom playlists!