1. There is a commercial version of freedb -- gracenote. it no longer uses the same db format, and devices/programs that use gracenote are supposedly contractually prohibited from also supporting the original freedb format.
2. it's no secret thaat the freedb project is in disarray right now - see their website.
3. I use the olive musica, which combines the best of both worlds. it ships w/ the database preloaded, and also checks online for newer info. in about 100 CD'S only one was unrecognized' and it worked a day later. some of this stuff was quite obscure. so I have had good luck.
4. accuracy has also been v good, w/ only 1 obvious error.
5. freedb does have a process for submitting additions/corrections. that's the idea - a community effort. if you find things it doesn't have, add them!