16 Mar
2004
16 Mar
'04
8 a.m.
Hi everybody,
A little question:
In the device/driver descriptor block (sector 0 of a disk), the first three fields are: sbSig: Integer; {device signature} sbBlkSize: Integer; {block size of the device} sbBlkCount: LongInt; {number of blocks on the device}
For sbBlkSize, I always got 512 on magnetic hard disks and CD-ROMs (magneto-optical disks are another matter). Now, what happens when the disk contains more than 0xFFFFFFFF * 0x0200 bytes? This could be the case with a DVD-ROM, for instance.
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Best Regards
Pierre Duhem
Logiciels & Services Duhem, Paris (France)
duhem@macdisk.com