Zend certified PHP/Magento developer

Music database identifier (e.g. MBID) in EAC FLAC/Vorbis metadata

I want to …

  • … rip Audio CDs to FLAC using Exact Audio Copy (EAC).
  • … include a universally unique identifier for the exact release (specific label/year/country/etc.), additionaly to common fields (like artist, etc.)
  • … use the MBID (MusicBrainz Identifier) for this cause, since MusicBrainz is free and quite complete.
  • … use it via command line options, like EAC tags work: -T "VORBISCOMMENTFIELD=%eacplaceholder%"
  • … have this done on-the-fly during a single rip (i.e. no manual post-encoding lookup).

My problems are that …

  • … the EAC FAQ lists some placeholders, but merely %cddbid% (freedb ID) in regards to this question.
  • … I can’t quite find standardized Vorbis comment fields corresponding to music database identifiers (like CATALOGID/CATALOGNUMBER or concrete CDDB/freedb/etc. IDs).
  • … though MusicBrainz Picard maps their tag system rather nicely …
  • … EAC seems to be the bottle-neck, since it seemingly cannot convey fetched metadata arbitrarily to the encoder parameters.

Does somebody know a solution to this? Or is this too specific and ought to be asked somewhere particularly devoted to EAC?