encode2mpeg -o NOCACHE -dvd dvd://1 -ac3 copy -mpeg -encode 0:0:1 -multiaudio 128,129 -addchapter copy -addsub 0 -imageonlyrequires about 1h56m.
encode2mpeg -o ADDCACHE -dvd dvd://1 -ac3 copy -mpeg -encode 0:0:1 -multiaudio 128,129 -addchapter copy -addsub 0 -imageonly -cache /var/tmp/cache /media/cdrecordertakes instead 1h23m. There is a 25% time reduction. The time gain is not always the same, it depends of the options. Under certain conditions, you could increase the time required instead of reducing it.
encode2mpeg -o USECACHE -dvd dvd://1 -ac3 copy -mpeg -encode 0:0:1 -multiaudio 128,129 -addchapter copy -addsub 0 -imageonly -dvd-device /var/tmp/cache/<TITLE>takes now 0h51m. The time reduction now is 55%. Again, with certain options, the time gain could be irrelevant.
-cache <cache dir> <dvd mount point>Once you have cached the dvd on the disk, you can use the cache content for succesive run adding the option:
-dvd-device <cache dir>/<DVDTITLE>You can save the content of the cache to a DVD disk with:
-savecacheor, if you want to create only an iso image, use:
-savecache isoIn order to remove the cache content from the disk at the end of a run, add, together with -cache or -dvd-device, the option:
-removecacheIf you want to execute only cache operations (create/save/remove cache) add:
-cacheonly
encode2mpeg -o DISK -cache /var/tmp/cache /media/cdrecorder -savecache -removecache -cacheonlywill do only a verbatim copy of a DVD
Most DVD movies are on a DVD9, their size is bigger than 4.38GB so
they will not fit on a single layer DVD. It it possible however to
store a DVD9
on two single layer DVD and watch (on a pc) the movie as if it was
stored on a single disk.
Add to encode2mpeg the option:
-savecache raidor, if you want to create only the iso images, use:
-savecache raid isoOnce you have the two DVD, or the two iso images, you need to mount them. Together with encode2mpeg you will find the script mountdvdraid that is able to mount two disk together:
mountdvdraid /media/dvd /dev/sr0 /dev/sr1
will execute something like:
mountdvdraid /media/dvdwill do the reverse operation.