Sony SLV-D380P Operating Instructions Manual page 9

Note on DualDiscs
A DualDisc is a two sided disc product which
mates DVD recorded material on one side with
digital audio material on the other side.
However, since the audio material side does not
conform to the Compact Disc (CD) standard,
playback on this product is not guaranteed.
US
9
This player can play the following discs