I recently found a bunch of my wife’s CDs that I hadn’t ripped, and many are not in the MB database.
Reading the FAQ and wiki I couldn’t tell what the bar is for something being included. Some examples from least “official” to most:
- A self-published CD that about 100 copies were made of on a CD-R with a jewel-case insert clearly printed on an inkjet
- A pressed CD, that is a self-titled EP with no barcode from a band that never released anything else
- A pressed CD of a christian college chapel band; it has a barcode and a catalog number, but no music label is listed. The CD says “DISC MAKERS” on the clamping area which I assume is the vanity press used to make it.