PLEXTOR DVD & SCSI emu

[Roland Smith]

On Mon, Oct 09, 2006 at 01:49:32PM +0300, Stefan Lambrev wrote:
> Hello,
> 
> There are some weird problems with those dvd burners & atapicam.
> 
> I compile kernel with device atapicam and followed all steps from:
> http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/creating-cds.html#ATAPICAM
> and on dmesg now I have:
> 
> cd2 at ata1 bus 0 target 1 lun 0
> cd2: <PLEXTOR DVDR   PX-716AL 1.01> Removable CD-ROM SCSI-0 device
> cd2: 33.000MB/s transfers
> cd2: Attempt to query device size failed: NOT READY, Medium not present 
> - tray open

I've got one just like it:

cd1: <PLEXTOR DVDR   PX-716A 1.08> Removable CD-ROM SCSI-0 device 
cd1: 3.300MB/s transfers
cd1: Attempt to query device size failed: NOT READY, Medium not present - tray c
losed

Works without problems, reading and writing.

> (cd0 is Light-On external DVD burner connected via USB)
> 
> While burning DVDs with growisofs is working perfect I have problems 
> reading them :)
> The only way to mount/read the DVD is to use /dev/acd0/1 - /dev/cd1,2 
> just does not work.
> 
> When I try to access /dev/cd1,2 I have :
> 
> Oct  9 11:50:09 thor kernel: (cd2:ata1:0:1:0): READ TOC/PMA/ATIP {MMC 
> Proposed}. CDB: 43 0 0 0 0 0 0 0 4 0
> Oct  9 11:50:09 thor kernel: (cd2:ata1:0:1:0): CAM Status: SCSI Status Error
> Oct  9 11:50:09 thor kernel: (cd2:ata1:0:1:0): SCSI Status: Check Condition
> Oct  9 11:50:09 thor kernel: (cd2:ata1:0:1:0): ILLEGAL REQUEST asc:24,0
> Oct  9 11:50:09 thor kernel: (cd2:ata1:0:1:0): Invalid field in CDB
> Oct  9 11:50:09 thor kernel: (cd2:ata1:0:1:0): Unretryable error
> Oct  9 11:50:09 thor kernel: (cd2:ata1:0:1:0): READ TOC/PMA/ATIP {MMC 
> Proposed}. CDB: 43 0 0 0 0 0 0 0 4 0
> Oct  9 11:50:09 thor kernel: (cd2:ata1:0:1:0): CAM Status: SCSI Status Error
> Oct  9 11:50:09 thor kernel: (cd2:ata1:0:1:0): SCSI Status: Check Condition
> Oct  9 11:50:09 thor kernel: (cd2:ata1:0:1:0): ILLEGAL REQUEST asc:24,0
> Oct  9 11:50:09 thor kernel: (cd2:ata1:0:1:0): Invalid field in CDB
> Oct  9 11:50:09 thor kernel: (cd2:ata1:0:1:0): Unretryable error
> 
> It's not a big deal as I have the needed access using /dev/acd0,1, but 
> the some
> apps can only work with SCSI devices :(
 
> Also is there any app in base that can tell me what is the label (Volume 
> ID) of the DVD, or other
> useful info ? :) - like "cd-info" from ports/multimedia/vcdimager/

You could try dvd+rw-mediainfo, from the same package as growisofs
(dvd+rw-tools).
 
Roland
-- 
R.F.Smith                                   http://www.xs4all.nl/~rsmith/
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