Re: set speed for Toshiba CDROM drive ?

Gerd Knorr (
Thu, 7 Aug 1997 21:59:26 +0200

>> does anyone know how to set the media speed (1x, 2x, 6,7x) for
>> TOSHIBA XM-3701 cdrom drive ? I'd like to have some ioctl() or similar
>> where I can redure the speed to 2x or 1x when I get read/positioning errors
>> for flaky CDR disks.
>There is a SCSI-Command SET-CD-SPEED (0xbb).

>page 69

Looks like this is a useful document, thanks for the pointer. But that's
the scsi-3 draft, guess it is'nt implemented yet in current cdrom readers.

Hav'nt tried this, but will do if I come back from holidays...
The generic cdrom driver already has a ioctl for that, but none of
the existing drivers supports this as far I know.