All Things Audio:

Mastering Preparation-

Cutting straight to the chase- you should have the following all set - Sequence
- ISRC codes (unique ID number that will help track royalties)
- UPC code (your bar code number)
- Any specific "problems" you would like addressed

ISRC codes are issued by your record label. If you ARE the label, you can register yourself/ your indie label with the RIAA.