[CentOS] CD burning issues & questions
Michael A. Peters
mpeters at mac.com
Thu Jan 1 06:32:40 UTC 2009
> Any ideas/suggestions?
I always just use the cli tool, and I always do the actual burn as root.
To make a CD/DVD image I use -
mkisofs -J -l -r -o foo.iso /path/to/some/directory
To burn - which I do as root - I insert the media, wait a few seconds,
cdrecord -dev=/dev/scd0 -speed=n -dao -pad -v foo.iso
For data CDs if I pick a speed below 24x it does 24x anyway - not sure
why, didn't with my old burner (ATAPI) but does with my SATA burner.
With DVDs - I specify 4x. When burning AVI files to play on my DVD
player (which supports divx on iso9660) if I burn at 8x - half the time
the DVD player reports bad disk, but burn at 4x and it always works
Don't let the screensaver pop on during a burn - I've had that ruin
burns. Also burn as root. When I try burning as a non privileged user,
it often fails. You can set the suid bit on cdrecord and burn as
standard user, but that gets undone next yum update (I suppose you could
write a suid wrapper script and throw it in /usr/local/bin ...)
For audio CDs - last time I burned an audio CD was so long ago I don't
remember, but I recall needing to make a TOC file and I think I used a
different executable than cdrecord.
Also - if running BitTorrent - shut it off. I've had burns ruined
because BitTorrent was running. That may have been because I don't have
a dedicated disk for the CD/DVD images, so the disk arm moving to read
and send torrent bits may have been too slow to keep the burner buffer
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