> 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.
