Re: growisofs "Failed to change write speed"

[Bill Davidsen <davidsen@tmr.com>]

Mikhail Kolesnik wrote:

Sometimes (not always) I got this messages:
  

Executing 'mkisofs -A growisofs --publisher mike_k_the_publisher 
-sysid SuSE linux 9.3 -r -uid 0 -gid 0 -dir-mode 755 -file-mode 644 
-allow-leading-dots -J -l -relaxed-filenames -allow-lowercase 
-no-iso-translate -max-iso9660-filenames -iso-level 3 -V mpeg4s_DVD 
-input-charset koi8-r /mnt/hdb5/mpeg4s_DVD | builtin_dd 
of=/dev/dvdrecorder obs=32k seek=0'
Warning: creating filesystem that does not conform to ISO-9660.
Warning: ISO-9660 filenames longer than 31 may cause buffer overflows 
in the OS.
:-( Failed to change write speed: 8467->11080
    

But rerunning the script a second later works great... Any ideas?
My setup:
hdc: _NEC DVD_RW ND-3540A, ATAPI CD/DVD-ROM drive (default firmware)
media: TDK DVD+R Data/Video 4.7GB 1-8x
tools: dvd+rw-tools-5.21.4.10.8
kernel: 2.6.11.4 (SUSE Linux 9.3)


  

My guess is slow response of the device, after the command is timed out it does work, then the rerun gets a fast success since the speed is already set. Or the firmware could report a fail when it actually worked, not out of the question.

That is JUST a possibility, but you might look at the status, run the script and let it fail, then check the speed of the device again to see if it did change.

-- 
bill davidsen <davidsen@tmr.com>
  CTO TMR Associates, Inc
  Doing interesting things with small computers since 1979