I’m trying to find the sources in the database of the various pieces of information displayed on the webpages.
For the release of “The Wall” found at Release “The Wall” by Pink Floyd - Details - MusicBrainz, the right hand sidebar gives this information:
Release information
Barcode: 074643618328
Format: 2×CD
Length: 1:21:20
I see where the barcode comes from. It’s release.barcode. But I don’t see where the format comes from. I ran a query against the database, and the only place I could find that string was in a comment field for a single release group that wasn’t even by Pink Floyd. So that can’t be it.
If I do select * from medium where release = 286398, I get two results, with positions 1 and 2, each of which has a format of CD. Is that it? It’s derived on the fly? And the length comes from summing all of the lengths in track after joining to medium?