[techtalk] CD-R
Conor Daly
conor.daly at oceanfree.net
Wed Jul 25 01:04:13 EST 2001
On Sat, Jul 14, 2001 at 01:41:41PM -0700 or so it is rumoured hereabouts,
Akkana thought:
> R Winston writes:
> > Why won't CD-R discs I recorded work on my Sony DVD/CD player? It says "no disc" when I try to play them?
I'm inclined to think either a) you haven't "closed" the discs before
trying to play them (cdrecord -fix will do that for you) or b) you are
using a particular brand of disc that your CD player doesn't like. Try
using a different brand of disc to see if that helps.
> (I record CDs on Windows because although it was easy to follow the
> howto on ide-scsi and get my HP cdwriter recognized, I haven't been
> able to decode the cdrecord man page to figure out how to just say
> "take directory path/here and put it on the CD", and I haven't
> found any GUI wrappers that actually run. Anyone here have a
> favorite cd writing app, or a pointer to a basic howto on how to use
> cdrecord to do the basics? I hate having to resort to Windows.)
Um, have you had a look at the CD-Writing-HOWTO at linuxdoc.org? It's all
laid out nicely there. In any case, here's my standard commandline for
data CDs...
mkisofs -J -r -o image.iso <directory to build CD from>
followed by
cdrecord image.iso
Here also is the handy little script (cdr-image) I use to figure out the size
of the CD I'm about to make and then to make the image. It's quick and dirty
but convenient.
[cdaly at Valkerie bin]$ cdr-image
Useage: cdr-image -o <iso.filename> <Directory> (Default current)
[cdaly at Valkerie bin]$ cdr-image -o ~/test.iso ~/Download/
Blocks: 131965
The size of this image is...
263930kb
257Mb
0.25Gb
Proceed y/n [n]?
################### cdr-image ################################
#!/bin/bash
if [ $1 ]; then
if [ $# = "2" ]; then
DIR="."
fi
BLKS=`mkisofs -q -J -r -print-size $* $DIR 2>&1| cut -f8 -d" "`
KAYS=$(($BLKS * 2))
MEGS=$(($BLKS / 512))
GIGS=$(($BLKS / 512 / 1024))
GIGT=$(($BLKS * 100 / 512 / 1024))
GIGT=$(($GIGT - ($GIGS * 100)))
echo "Blocks: "$BLKS
echo "The size of this image is..."
echo $KAYS"kb"
echo $MEGS"Mb"
echo $GIGS"."$GIGT"Gb"
echo
echo -n "Proceed y/n [n]? "
read CHOICE
if [ $CHOICE -a $CHOICE == 'y' ]; then
mkisofs -J -r $* $DIR
fi
else
echo "Useage: "$0" -o <iso.filename> <Directory> (Default current)"
fi
##################### end of file #############################
>
> ...Akkana http://www.shallowsky.com
>
--
Conor Daly <conor.daly at oceanfree.net>
Domestic Sysadmin :-)
---------------------
Faenor.cod.ie
12:35am up 40 days, 54 min, 0 users, load average: 0.00, 0.00, 0.00
Hobbiton.cod.ie
12:35am up 40 days, 1:11, 1 user, load average: 0.00, 0.00, 0.00
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