Enhanced CD leadout, what are these entries?

Q:

41140110070300654021329E
41AA01000000006540222BD2
41AA010000010065402391A2
41AA01000002006540240F97
45AAD10000000255331852DC
45AAD10000000255331852DC
45AAD10000000255331852DC
41AA0100000600654028471D
41AA0100000700654029FD6D
41AA01000008006540301B8C
45AAD10000000255331852DC
45AAD10000000255331852DC
45AAD10000000255331852DC
41AA010000120065403419FC
41AA0100001300654035A38C
41AA0100001400654036F43B
45AAD10000000255331852DC
45AAD10000000255331852DC
45AAD10000000255331852DC
41AA01000018006540406141
41AA0100001900654041DB31
41AA01000020006540424FC0
45AAD10000000255331852DC
45AAD10000000255331852DC
45AAD10000000255331852DC

As you can see, the ADR nibble is 5, and the POINT is D1.

Thanks in advance.

I’ve never seen those before. The CRC Q sub codes are correct, but it seems the R-time and A-time are not encoded as times.

Just a reminder for those interested, an Enhanced CD is a multisession CD with all audio tracks on first session (CDDA) and a data track on second session (CD-ROM mode 2/XA).

Q subcodes (in subchannel) has different meanings that depend on the location and the lower first 4 bits of the first byte, called Q mode. Example, on the 1st line above, the first byte is 41 and the 1 means Q mode 1. Similarly, on the 5th line, the first byte is 45 and the 5 means Q mode 5.

If you look in the MMC2 draft, starting from page 40, you’ll see a brief description of the meanings.

For anyone interested try using a sector viewer tool to take a look at the subcodes of a CD.

Normally a multisession CD has in it’s TOC, Q subcode entries with mode 5 (ADR) and points B0, and C0.

If I remember correctly, the D1 point’s A-Time indicates the start A-Time of the last session (55:33:18). Would this be correct for this CD?

The start of the 2nd program area for this Enhanced CD is 55:31.18, and the start of the data track is 55:33.18.

Thanks RichMan.

There’s another good explanation here:
http://club.cdfreaks.com/f52/enhanced-cds-patterns-leadout-246732/