Read Sub-Channel

The ADR field shows the type of information encoded in the Q sub-Channel of this block as defined in the CD standard.

MCV

If the MCV bit is one, the media catalog number field is valid.

There are identify numbers according to the UPC/EAN cording in the media catalog number field. If all data in this field is ASCII 0, there is no media catalog number in the field.

TCV

If the TCV bit is one, the ISRC field is valid. In this field, there are identify numbers according to the ISRC standard. (DIN-31-621)

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