They are excellent. However, not all are 3channel because not all the master tapes were made in 3channel. Also, there are MCH releases that have 2channel-only tracks on the MCH portion and so-labelled 2channel-only releases with bonus MCH (3channel) tracks.
Full details in my November column in Stereophile.
Kal
Full details in my November column in Stereophile.
Kal