Messages in this thread | | | Date | Wed, 15 Dec 1999 21:50:27 +0000 | From | Jens Axboe <> | Subject | Re: reading DVD-ROM: Logical block address out of range |
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On Wed, Dec 15 1999, Harald Koenig wrote: > using 2.2.13 kernel when trying to sequentially read a DVD-ROM > using Pioneer U303S drive > > Vendor: PIONEER Model: DVD-ROM DVD-303 Rev: 1.10 > Type: CD-ROM ANSI SCSI revision: 02 > Detected scsi CD-ROM sr3 at scsi0, channel 0, id 4, lun 0 > ncr53c815-0-<4,*>: FAST-10 SCSI 10.0 MB/s (100 ns, offset 8) > sr3: scsi3-mmc drive: 0x/0x cd/rw xa/form2 cdda tray > > I get the following errrors at EOF of the media: > > sr3: CD-ROM error: Info fld=0x4d8e0, Current sr0b:03: sense key > Illegal Request > Additional sense indicates Logical block address out of range > command was: Read (10) 00 00 04 d8 e0 00 00 20 00 > ncr53c815-0-<4,0>: phase change 2-3 10@079bb245 resid=4. > sr3: CD-ROM error: Info fld=0x4d8e0, Current sr0b:03: sense key > Illegal Request
So this is the end of the media, right? Probably the capacity was a bit off at init.
> Additional sense indicates Logical block address out of range > command was: Read (6) 04 d8 e0 20 00 > CD-ROM I/O error: dev 0b:03, sector 1270656
And we fall back to READ_6 in this case, wrongly...
> another problem with this DVD drive: > reading CDs I get up to 4.8 MB/sec which matches the specified 32x speed > for CDs. but reading DVDROM I only get sustained 2.7 MB/sec (2x) all the > time and not up to 8.1 MB/sec (6x). any idea why ?
Hard to say why. I have the ATAPI version of that drive, and it has no problems going 6MB/s with DVD-ROM.
-- * Jens Axboe <axboe@image.dk> * Linux CD-ROM Maintainer * http://www.kernel.dk
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