I am trying to backup DVD's that I own.

The following script works fine until the line:
dd if=/dv_dvd/* of=/dev/hdd
How do I solve this?

Also; once I type in the correct directory,
I get the error;
dd: opening `/dev/hdd': Read-only file system
How do I solve this?

Thanks,
dlw

echo
cd /hdb/Movies/
echo
echo "Enter Movie Title."
read -e path
mkdir $path
cd /hdb/Movies/$path
echo
echo
echo "Create one large *.vob."
vobcopy -l
echo
echo
echo "Remove DVD."
echo
echo "Insert Blank DVD."
echo
echo "Extracting video"
echo
tcextract -i *.vob -t vob -x mpeg2 > movie.m2v
echo
echo "Extracting audio"
echo
tcextract -i *.vob -a 0 -x ac3 -t vob > audio.ac3

vsize=`du -b movie.m2v | cut -c 1-10`
audioa=`du -b audio.ac3 | cut -c 1-9`

dvdlessaudio=$((4700000000-$audioa))
division=$(echo "scale=2; $vsize/$dvdlessaudio" | bc)
req=$(echo "scale=2; $division*1.05" | bc)
echo " "
echo "Requant factor for this movie is:" "$req"
echo
echo "Shrink video"
tcrequant -i movie.m2v -o shrinked.m2v -f $req
echo
echo "Multiplexing"
echo
mplex -f 8 -o final.mpg shrinked.m2v audio.ac3
echo
echo "Authoring"
echo
dvdauthor -t -o dv_dvd final.mpg
dvdauthor -o dv_dvd -T
echo
echo "Copy to DVD."
echo
dd if=/dv_dvd/* of=/dev/hdd
echo
echo "DVD is ready."
echo
# Requires; libdvdcss / transcode / mjpegtools / dvdauthor / cdrecord (mkisofs) /lsdvd /bc

A couple of things.

First off /dev/hdd is the DEVICE for the hard drive. Unless this is an unformatted hard drive (unlikely) you don't want to be doing a dd to the DEVICE. You want to dd to a FILE on the filesystem mounted on the DEVICE. Type "fdisk -l /dev/hdd" to see what partitions you have on the device. Type "df -h" to see what filesystems you have mounted using those partitions.

Secondly Trying to dd in multiple files and output to a single file would not give you the images you want. What you want to do is a for loop to do a dd for EACH of the files.

Something like this instead of the dd command you currently have:

/dev/hdd is /mnt/cdrom

So write to /mnt/cdrom rather than /dev/hdd. /mnt/cdrom being the filesystem.

However I don't know that you can just write to it like that. It seems you'd need to "burn" the CD which is a little more complicated than just copying things to it.

This is the way the script is now:

49 For DVD in 'ls /dv_dvd'
50 dd if=/dv_dvd/$DVD of=/mnt/cdrom/%DVD.img
51 done

This error appears;
line 50; syntax error near unexpected token 'dd'


This is where the script stops.
Everything in 'VIDEO_TS' works fine.

I don't know if 'dd' will write to a dvd either.
I was told it was and saw it used elsewhere.
If it won't then I'll have to try something else.

Any ideas?
growisofs maybe

Hi,
I think the following might help....?
In your script:
49 For DVD in 'ls /dv_dvd'

should be:

49 For DVD in `ls /dv_dvd`

the back tick is just under ~ on the keyboard

Thanks for replying pitcat.

The following script works great except for writing to a DVD.
I use K3b for that.
It would be nice if it would copy to a DVD in one operation.
There are a couple of hundred do to.

Any ideas appreciated.
dlw

echo
cd /hdb/Movies/
echo
echo "Enter Movie Title."
read -e path
mkdir $path
cd /hdb/Movies/$path
echo
echo
echo "Create one large *.vob."
vobcopy -l
echo
open /dev/hdd/
echo
echo "Remove DVD."
echo
echo "Insert Blank DVD."
echo
echo "Extracting video to movie.m2v."
echo
tcextract -i *.vob -t vob -x mpeg2 > movie.m2v
echo
echo "Extracting audio to audio.ac3."
echo
tcextract -i *.vob -a 0 -x ac3 -t vob > audio.ac3
echo
echo "Clean up *.vob."
echo
rm *.vob
echo
vsize=`du -b movie.m2v | cut -c 1-10`
audioa=`du -b audio.ac3 | cut -c 1-9`

dvdlessaudio=$((4700000000-$audioa))
division=$(echo "scale=2; $vsize/$dvdlessaudio" | bc)
req=$(echo "scale=2; $division*1.05" | bc)
echo " "
echo "Requant factor for this movie is:" "$req"
echo
echo "Shrink video"
tcrequant -i movie.m2v -o shrinked.m2v -f $req
echo
echo
echo "Multiplexing"
echo
mplex -f 8 -o final.mpg shrinked.m2v audio.ac3
echo
echo "Clean up shrinked.m2v."
rm shrinked.m2v
echo
echo "Clean up movie.m2v."
rm movie.m2v
echo
echo "Clean up audio.ac3."
rm audio.ac3
echo
echo "Authoring"
echo
dvdauthor -t -o dv_dvd final.mpg
dvdauthor -o dv_dvd -T
echo
#echo "Clean up final.mpg."
# rm final.mpg
#echo
#echo "Copy to DVD."
#echo
# dd if=$DVD of=/mnt/cdrom/%DVD.img
# done
#echo
# eject /dev/hdd/
#echo "DVD is ready."
#echo
# Requires; libdvdcss / transcode / mjpegtools / dvdauthor / cdrecord (mkisofs) /lsdvd /bc

maybe cdrecord will record the dvd from the command line.

its just files that need to be recorded.