Greetings,
I am using dvd+rw-tools version 5.21 with mkisofs version 2.0, Linux kernel
2.4.26. DVD media used is Verbatim DVD-R and the drive is an external USB2.0
BTC DVD writer connected to a USB1.1 port (no option in changing the USB) on
a small embedded computer.
I am using the following script to write a given file to a given attached
DVD writer in a multisession manner. The script figures out if the media is
blank and uses the -Z option, otherwise it uses the -M option. It works fine
for a few sessions and it then fails to write. It seems that the failure
starts when the number of files in previous sessions is about 35 and the
total size is about 600Mbytes but this may not always be the case. Has
anyone experienced this kind of failure on a multisession recording?
Any help is greatly appreciated.
Farshad
#! /bin/sh -x
# save given file to the DVD writer attached to SCSI
# in a multi session format
# $1 is the path to the source directory to be saved
# $2 is the device number
RET=`/bin/growisofs -speed=0.5 -M /dev/sr$2 -R -J $1`
EXIT_VALUE=$?
if test $EXIT_VALUE -eq 0 ; then
if test "`echo -n $RET | grep Executing | wc -c`" -gt 0 ; then
echo "DVD Write OK"
exit 0
else
echo "DVD Write FAILED"
exit 127
fi
else
if test $EXIT_VALUE -eq 150 ; then
echo "First Track, using -Z option"
RET=`/bin/growisofs -speed=0.5 -Z /dev/sr$2 -R -J $1`
EXIT_VALUE=$?
if test $EXIT_VALUE -eq 0 ; then
if test "`echo -n $RET | grep Executing | wc -c`" -gt 0 ;
then
echo "DVD Write OK"
exit 0
else
echo "DVD Write FAILED"
exit 127
fi
else
echo "DVD Write FAILED"
exit 127
fi
else
echo "DVD Write FAILED"
exit 127
fi
fi
