Not copy protection but people who copy to DVD often use single layer disks so you need to shrink video files to fit on single layer disks with handbrake, dvdshrink, etc. If you stopped buying DVDs when blu-ray/streaming came along, then your DVDs probably don't have it. Blu-ray players manufactured after 2009 and DVD players manufactured after 2012 required to implement. * cinavia - encodes a signal in the audio, regardless of how the audio is copied, that most blu-ray players will detect and disable playback but it won't significantly affect your ability to play it on computer/streaming (unless you use a DVD/blu-ray player as a streaming device?) other than the reduced audio quality inherent in cinevia encoding. Some dvd copying software will remove the bits that instruct the DVD player to do that. Companies pay based on the number of frames they corrupt, so video may look ok until you get to a good scene. * analog protection - specific scenes are corrupted during playback to prevent analog copying. Also, even without the barcode there is a media ID on the original disk that is not copied. * barcode burned on disk in burst cutting area with a different kind of laser but readable by player as well as with the naked eye and may or may not be checked by java code in menus. much bigger than will actually fit on disk or 0 bytes) DVD player following menus normally never accesses those sectors. * intentionally bad sectors (Arcccos and ripguard) - cause raw disk or file copying software to hang or be very slow. blu-ray has a much stronger encryption algorithm. The data needed by the drive/player to decrypt will be lost on a raw iso copy. * CSS - the data is encrypted on the disk using a primitive algorithm. Plain ISO copy typically does not work due to copy protection on commercial videos. Just make sure to tag the post with the flair and give a little background info/context.Įdit: added considerable detail after switching devices. On Fridays we'll allow posts that don't normally fit in the usual data-hoarding theme, including posts that would usually be removed by rule 4: “No memes or 'look at this '”
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