Two sessions of ISO 9660
Two sessions of ISO 9660
- Subject: Two sessions of ISO 9660
- From: Markus Hitter <email@hidden>
- Date: Sun, 17 Apr 2005 22:39:23 +0200
Hello all,
a few weeks ago I burnt two sessions of two ISO 9660 fs onto one CD.
This was Toast 5.1 on Mac OS X 10.1.5. I ejected and reinserted the
media and under all circumstances, both sessions showed up fine in the
Finder as two volumes.
Since then I upgraded to Mac OS 10.2. Today, I was surprised to see Mac
OS X 10.2.8 can see only the second of those two partitions on just the
same hardware. To verify, I put the CD into another 10.3.8 box, just to
find the same result. Furthermore, neither 10.2 nor 10.3 seem to allow
to write a ISO 9660 image into a session, they only allow writing a
whole disk.
The reason why this goes to the kernel list is, not even Disk Utility
sees more than one session and in /dev only one entry gets created.
There isn't any error message somewhere. Obviously, the second session
is missed at a very low level.
Is there any reason why multi-session ISO 9660 CD support was
(apparently) removed from the OS? Any chance to read the sessions
anyway, without rebooting into 10.1.5 ?
Thanks,
Markus
P.S.: No, it's not a defective CD. It still works in 10.1.5 on the same
hardware. :-)
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Dipl. Ing. Markus Hitter
http://www.jump-ing.de/
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