On 12/18/2022 9:59 PM, Tim via users wrote:
On Sun, 2022-12-18 at 21:16 -0500, Bill Cunningham wrote:
But I do want a dvd converted into a mp4. Or an ISO into a mp4. It seems a hard time doing it.
If you did the whole disc/iso, you'd get the studio promos, the copyright warnings, the adverts, the main feature, the shorts, all compiled into one huge video file. It'd be like playing video tape, with no way to jump to particular sections, you'd have to spool through.
There are some file formats which support index markers, but you also need a player that knows to look for them (I don't which, if any, do).
If you want just the main feature, you pretty much have to hand select the right VOB files to use. Or, use a tool which lets you select which title to use, and you'd have to figure out which title it was.
VLC has a convert/save thing in the menu which brings up various options for batch conversion (I don't know if it'll take four input files and produce one output file). There's a whole disc option. You may be constrained by (a) needing pre-decrypted files, and (b) installing extra codecs.
...
I know anytime I have created an mp4 file I only got a title screen and the feature. I didn't have to make any adjustments. Now the ISO is different, this is my experience. But I want the ISO when there is special features on the dvd like director's cuts, interviews with cast and such. All mp4 I have made have been 700 MB or so. Far better for a film that has no added features other than the main feature.
On linux's modern tools. I have always had to use loopback with dvdbackup. It seems to want a device not directory to copy from. I can attach a ISO or just copy from the dvd. For example,
losetup /dev/loop0 FILE.iso
dvdbackup -F( or M)vpi /dev/loop0 -o OUTPUT
I have no idea how so far, to use dvdauthor. Unless there a switch IDK about, dvdbackup doesn't read a file or directory, only device files.
What does it mean to "encode" a dvd? I am not familiar with that. Is that what dvdauthor does. I will try to find mplayer and mencode, They it seems to me too, older.
B