The Sony CDU-924 was the first drive that has no hardware support
for CDROM XA2 mode 1. If you want to create a multi session disk,
you need to switch back to -data (plain CD-ROM)

If you have a Sony drive that gives you problems with multi session disks,
please always check the following:

	For some Sony drives you may need to call cdrecord -multi -data
	if you like to create multi-session CD's.

	Some Sony drives do not allow to write XA2 tracks with
	hardware support of the drive.

There is currently a bug in the Sony code (for _old_ non MMC drives)
of cdrecord that does not allow you to have different track types 
in one session.

All Sony drives that have CDUxxx type names are _old_ non MMC drives.
	Here I expect that no XA support is in the firmware.

All Sony drives that have CRXxxx type names are MMC compliant.
	These drives should support XA-mode2-form1 as it is mandatury with MMC.

NOTE: many HP CD-writers are nased on Sony OEM drives.


NOTE: As for 18.5.2001, a fix was introduced that prevented cdrecord
	to do multi session with new MMC compliant Sony drives.