On 22 August 2018 at 23:16, Rohan McLeod via luv-talk <luv-talk@luv.asn.au> wrote:
I was still astonished when this "DVD", seemed to have 61 GB of files ! ... anyone come across this kind of thing and why does it exist ?
This has to do with the way DVD-Video is "authored", the format's specification is quite complicated[1], so without going too deep; the DVD "filesystem" is just one view of the content—since video, audio, subtitle and navigation streams are _multiplexed_ and stored in the VOB container, you can have multiple titles with their own set of VOB files that reference the same MPEG input streams in different ways, this could be due to multi-angle feature (e.g. for internationalisation, directors cuts, etc) and/or other extra features. It appears you may have a benign "multiple title" DVD-Video, rather than a brain dead copy protection attempt (e.g. obfuscation using 99 titles). How were you copying these files? Perhaps the following command might help grab only the main feature's title set; $ dvdbackup -i /dev/dvd -o ~ -F Failing that, if you already know which title contains the main feature; $ dvdbackup -i /dev/dvd -o ~ -t <title-number> These were taken from https://wiki.archlinux.org/index.php/Dvdbackup As always, YMMV ~ J [1] For reference, see: https://en.wikipedia.org/wiki/DVD-Video https://en.wikibooks.org/wiki/Inside_DVD-Video http://stnsoft.com/DVD/index.html