DVD piracy, how do they do it?

[RCBH928]

How come the file will be 50GB when it fits a 4.7 GB dvd?
this is very confusing, I wish for cartridge movies.
Fast, no loading, reliable, no scratches, they can be as small as SD cards

[Hatta]

DVDs are actually compressed with MPEG-2, much like MP3s are compressed with MPEG-3. If you decompress the whole thing you can expect about a 10x increase in size. But there's no reason to do that, you don't gain any quality when you convert from lossy to lossless formats.

[illiriks]

If you want to add subtitles, and legitimately own the film, why not torrent it pre-made? If the language is fairly common, I'd suggest going that route if it's only one film.
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