Incorrect identification of the same artist as different

[Phil Reynolds <phil-rygel tinsleyviaduct com>]

I have just set up rygel to act as my dlna server, having had minidlnad
on a previous incarnation of the server, and I experienced similar
problems with that too.

The problem I have is that rygel seems to have identified one album as
being by a different artist from the others (and tracks on mixed
albums) by the same artist. The tags are consistent, but gupnp-av-cp
shows two instances of the artist (ABBA), one containing just the one
album.

Why does this happen, and how can I resolve it?

-- 
Phil Reynolds
mail: phil-rygel tinsleyviaduct com