[hfs-user] Sector size in the Driver Descriptor

Pierre Duhem pierre at duhem.com
Thu Nov 17 01:03:54 PST 2005


Till now, all disk descriptors (in sector 0) I had seen for magnetical
disks and CD-ROMs began with
45 52 02 00,
that is the physical sector size was always 0x0200 (512d) even on
On the other hand, I had seen 0x0400 on magneto-optical disks.

Yesterday, I cam across a CD-ROM burnt on a Mac Mini with the
integrated burning tool and, to my surprise, I got 08 00 in positions
2 and 3 above.

Any comments?

Pierre Duhem
duhem at macdisk.com

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