It sounds like you have an older version. The nightlies have a sql backend now, and most of the genre-conversion stuff works fine now.
In fact, I do have a nightly, I think it’s svn-1659-1. I had to install it to get my ogg files to play on my Roku, and now they do, so I think I got it right. I got it about a week ago. Maybe the nightlies were in a state of flux then as well?