What are the EXT fields in CDDB used for?
I'm inputting the information for a new CD into CDDB as part of running abcde. In addition to the regular track info it includes a series of entries:
EXTD=
EXTT0=
EXTT1=
EXTT2=
EXTT3=
EXTT4=
EXTT5=
What would/should/could someone put into these fields for the CDDB database?