In article <1g2kprg.1mg2m861oxcv3cN%it>,
it (MatFox) wrote:
CCDB is an online service, not a local file.
It's an option in iTunes' preferences that may have somehow been turned
off. There's an option to connect to the internet automatically when
needed, that's the one that allows the CDDB to be consulted.
You can also choose to check "manually" (when you have a CD mounted)
from iTunes' Advanced menu.
Needless to say, getting CDDB info requires an internet connection.