Off topic, but I didn’t know there were 3 audio modes: stereo, 2-channel mono, joint stereo mode (3.3)
Oh, and (3.1):
ln a DCC player and/or recorder the tape can move in both directions during recording and playback at only one specified tape speed oI 4.76 cm/sec. For high speed copying a speed of 9.52 cm/sec is defined. Either direction makes use of the upper/lower half of the tape.
Really interesting stuff.
Oh, and:
A DCC recorder may record in the analogue Compact Cassette format onto an analogue Compact Cassette, but neither a DCC cassette can be recorded in the analogue Compact Cassette format nor an analogue compact cassette can be recorded in the DCC format.