SCSI-1 CD drives can't do MRW or be opened for writing, so mask off
those capabilities.
Signed-off-by: NChuck Ebbert <76306.1226@compuserve.com>
Acked-by: NJens Axboe <axboe@suse.de>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>