I guess the answer is: use growisofs with this unit, or get Plextor to do something about this firmware. I'm not at all opposed to growisofs/k3b, I was just used to xcdroast for burning CDs.
Have you dealt with anyone at Plextor that I might try to explain this to? Incidentally, Alan Stern at linux-usb-devel is also looking this over from the usb-storage end, and I'll post something here if he has something to add. Thanks for the note about the dvd+rw-tools update. Thank you, Tom > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] > Sent: Thursday, February 05, 2004 12:13 PM > To: Thomas J Magliery PhD > Cc: [email protected] > Subject: Re: plextor px-708uf: cannot get disk type > > > Version with dinfo[32+4] > > ============== > > [EMAIL PROTECTED] dvd+rw-tools-5.16.4.8.5]$ ./test /dev/scd0 > > :-( unable to READ DISK INFORMATION: Input/output error > > ============== > > The above program uses READ DISK INFORMATION with length parameter used > by cdrecord. > > > Version with dinfo[32] > > ============== > > [EMAIL PROTECTED] dvd+rw-tools-5.16.4.8.5]$ ./test2 /dev/scd0 > > 00 22 00 01 01 01 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 23 05 40 > > 00 00 00 00 00 00 00 00 > > ============== > > And this one uses READ DISK INFORMATION with length parameter used by > growisofs. > > > What does *this* mean? > > This means that there is no further need for me to assure that growisofs > works not because it ignores errors [as Joerg implies], but because it > does things differently. > > To wrap up. My initial assumption that it was hardly a firmware > deficiency was wrong. It is a firmware bug: unit apparently sends less > information than promised (the second number in above printout should be > 0x20(*) and 0x20 is the number which I observed uncounted number of > times in different units). Could Linux USB implementation have managed > it with more grace? I'm not really in position to judge, but maybe. > > (*) You should be able to verify it by declaring dinfo[32+2] in > previously posted snippet. > > Oh! From your prompt one can assume that you use 5.16.x. Note that > 5.17.x is strongly recommended update for those who use 5.14 through > 5.16. Cheers. A.
