SACD -- Hybrid, Single layer, Stereo, Multi?

1. All SACDs have a stereo SACD track.
2. Multichannel SACDs add a multichannel track to the SACD stereo track.
3. Hybrid SACDs add a CD (redbook) layer to the SACD stereo track.
4. Hybrid multichannel SACDs add both to the SACD stereo track.

The quality of the SACD tracks on hybrid SACDs is not any different from that on non-hybrids.

There are NO only MCH SACDs. All SACDs have a stereo track.