Re: How does one actually begin to produce albums for sale as an indie label?
ISRC coding is the most overlooked part, as NerfLad says. If you're serious about selling your music you absolutely must get this looked at. Royalties are usually distributed using the ISRC code of the track being played because it identifies that exact version of the song - even if there are multiple versions in existence. ISRC codes are encoded onto CDs using the Red Book standard so it's important if you are selling CDs seriously to make sure everything is encoded properly and the ISRC numbers are registered.
With the Red Book encoding, you're almost always better off getting the record mastered and encoded by a professional. What you produce from your computer's CD burner is unlikely to meet the standards required by professional bodies within the music industry - even if the sound is absolutely right. There's more to it than that!
Anything to Declare, Mr. Wilde?
I Have Nothing to Declare but my Genius.