UDFPATH=$HOME
 
yesorno=blah
 
type=blah
 
echo -e "By default the udf image will be placed into your home directory. \n Do you want to enter an alternative one? (Enter y or n)"
 
while < $yesorno != y -a $yesorno != n >; do
 
  read yesorno
 
  if < $yesorno != y -a $yesorno != n >; then
 
    echo "Wrong entry, please enter 'y' or 'n'"
 
  fi
 
done
 

 
if < $yesorno == y >; then
 
  echo "Please enter the directory you want to use: "
 
  read UDFPATH
 
  if < -d $UDFPATH >; then
 
    echo "Using $UDFPATH"
 
  else
 
    echo "Creating $UDFPATH" && mkdir -v $UDFPATH
 
  fi
 
fi
 
if < $yesorno == n >; then
 
  echo "Using default directory"
 
fi
 

 
if < -e $UDFPATH/udf.iso >; then 
 
  mv $UDFPATH/udf.iso $UDFPATH/udf.iso.bak-`date +%y.%m.%d-%H.%M` && echo "udf.iso already exists! Backing up..."
 
fi
 
 
 
echo -e "Please enter your type of disk: dvd5p, dvd5m, dvd9p or dvd9m:\n(5/9 stand for normal/double layer disk and p/m for +/-)"
 
while < $type != dvd5p -a $type != dvd5m -a $type != dvd9p -a $type != dvd9m >; do
 
  read type
 
  if < $type != dvd5p -a $type != dvd5m -a $type != dvd9p -a $type != dvd9m >; then
 
    echo "Wrong entry, please enter one of types from above"
 
  fi
 
done
 

 
if < $type == dvd5p >; then
 
  echo "Creating a 4,7 GB DVD+R image..."
 
  dd if=/dev/zero of=$UDFPATH/udf.iso bs=1024 count=4590208
 
fi
 
if < $type == dvd5m >; then
 
  echo "Creating a 4,7 GB DVD-R image..."
 
  dd if=/dev/zero of=$UDFPATH/udf.iso bs=1024 count=4596992
 
fi
 
if < $type == dvd9p >; then
 
  echo "Creating a 8,5 GB DVD+R image..."
 
  dd if=/dev/zero of=$UDFPATH/udf.iso bs=1024 count=8347648
 
fi
 
if < $type == dvd9m >; then
 
  echo "Creating a 8,5 GB DVD-R image..."
 
  dd if=/dev/zero of=$UDFPATH/udf.iso bs=1024 count=8343424
 
fi
 

 
mkudffs $UDFPATH/udf.iso
 
echo -e "UDF image created in $UDFPATH/udf.iso. Want to mount it right now? (Make sure udf and loop modules are loaded)"
 

 
yesorno=blah
 
while < $yesorno != y -a $yesorno != n >; do
 
  read yesorno
 
  if < $yesorno != y -a $yesorno != n >; then
 
    echo "Wrong entry, please enter 'y' or 'n'"
 
  fi
 
done
 
if < $yesorno == y >; then
 
  echo "Please enter the directory you want to use for mounting: "
 
  read MOUNTPATH
 
  if < $UDFPATH = $MOUNTPATH >; then
 
      echo "You can't mount the image to the directory it exists in!" && exit 0
 
      echo -e " Mount it yourself with 'sudo mount -o loop,user,uid=`id -u` -t udf $UDFPATH/udf.iso targetdir\&#39;"
 
      echo " Afterwards copy your files, unmount the image and burn the dvd."
 
      echo -e " For burning you may just use 'cdrecord -eject -dao -dev=/dev/sr0 $UDFPATH/udf.iso'\n (the path to your DVD burner may vary!)"
 
  fi
 
  if < -d $MOUNTPATH >; then
 
    echo "Using $MOUNTPATH"
 
    USERID=`id -u`
 
    sudo mount -o loop,user,uid=$USERID -t udf $UDFPATH/udf.iso $MOUNTPATH
 
    echo "Copy your files, umount the image and burn the dvd."
 
    echo -e "For burning you may just use 'cdrecord -eject -dao -dev=/dev/sr0 $UDFPATH/udf.iso'\n(the path to your DVD burner may also vary)";
 
  else
 
    echo "Creating $MOUNTPATH..." && mkdir -v $MOUNTPATH
 
      USERID=`id -u`
 
      sudo mount -o loop,user,uid=$USERID -t udf $UDFPATH/udf.iso $MOUNTPATH
 
      echo "Copy your files, umount the image and burn the dvd."
 
      echo -e "For burning you may just use 'cdrecord -eject -dao -dev=/dev/sr0 $UDFPATH/udf.iso'\n(the path to your DVD burner may also vary)";
 
  fi
 
fi
 
if < $yesorno == n >; then
 
  echo -e "All right, then mount it yourself with 'sudo mount -o loop,user,uid=`id -u` -t udf $UDFPATH/udf.iso targetdir'\nAfterwards copy your files, unmount the image and burn the dvd."
 
  echo -e "For burning you may just use 'cdrecord -eject -dao -dev=/dev/sr0 $UDFPATH/udf.iso'\n(the path to your DVD burner may also vary)"
 
fi