Music Data

Does anyone know of any resources where I could download data for
musicians, albums, etc?  I'm aware of the CDDB and there's a web site
that will allow you to download the CDDB's database files
(freedb.org), however I did download that and wrote a program that
parsed them and stuffed it in a SQL DB and the data was totally
inaccurate for a lot of discs.

What I'm really looking for is a database of all musicians, bands, and
albums (along w/ song titles) in which I could download, then stuff
that data into a local database.  Any help would be gratefully
appreciated.

Thanks!
~Ed