Hi,
are you aware that there were more replies on the list which did not
Cc you ?
David Farrier wrote:
> I have even entertained the thought the design might be so
> ancient as to be a repackaged SCSI drive.
I doubt that. The main difference between SCSI and IDE/ATAPI drives in the
was the price. Any IDE stuff was much cheaper than the SCSI counterparts
and nothing in an optical drive needed the luxury of Ultra/Fast SCSI.
Since cdrskin-1.5.2 you can inquire whether the drive announces its
internal bus controller type and its firmware timestamp:
cdrskin dev=/dev/sr0 --list_features | fgrep PhysInterface=
cdrskin dev=/dev/sr0 --list_features | fgrep Date=
I get on my oldest still active drive
PhysInterface=7/Serial_ATAPI , INQ2=0 , DBE=0
Date=20080509123456
As told by man cdrskin, one needs SCSI specs volume MMC to understand what
all the feature parameters mean. But the meaning of these two lines is
quite obvious.
Not all drives announce this. Some tell funny firmware dates like 2113.
cdrskin-1.5.2 is still in Debian "testing". But you may compile it from
its standalone source tarball and run it without installation and thus
without endangering Debian's package integrity.
http://scdbackup.sourceforge.net/cdrskin_eng.html#download
Just stop reading its README after
cdrskin/cdrskin -version
works and tells its version. Then use cdrskin by the absolute path of
the produced program file
./cdrskin/cdrskin
> Some trivia: the flagship of this line of products was the DV-W5000S. A
> standalone machine with built-in go/nogo display for verifying disks burned
> on another drive. No computer required!
Yeah. I came to those when sniffing after your initial report line
iProduct 76 Disk Checker DK-5000S
but deloptes beat me with announcing that
http://teac-ipd.com/dk-5000/
says
Power Source 100-240V AC, 50-60Hz
and thus indicates an own power supply which converts to low voltage DC.
-------------------------------------------------------------------------
So we have as main suspects for the problem:
- The drive's inner electrics and mechanics.
- The power supply of the drive's box.
- The converter in the box from the drive's own bus controller to USB.
(Ye olde Parallel SCSI, old IDE, and SATA are candidates.)
- The USB controller in your computer (and its internal connections).
More than one could be involved. Opportunities are manifold.
But i doubt that the USB cable could get tired after 130 MB.
Have a nice day :)
Thomas
