I have no idea if im correct but...
0
animefreak_usa
Child of Samael
Can you rip 720p off dvd or is this dude correct?
BD+ is a encryption thing right and unless im confused... HD-dvd isn't done anymore, and even then you use blue laser tech and still it not dvd 720p.
Spoiler:
BD+ is a encryption thing right and unless im confused... HD-dvd isn't done anymore, and even then you use blue laser tech and still it not dvd 720p.
2
In short, yes, video data can be down-scaled into smaller resolutions.
In length; when video or audio is recorded it is done so into a raw, uncompressed stream of data, 1s and 0s. It can't actually be viewed until software processes it and interprets it as video or audio. The size of raw video and audio data is extremely unwieldy, so in order to feasibly distribute it to an audience it must be compressed and down-scaled from it's original resolution or bit rate. This is where software encoding and compression formats like h.246 (Video) and AAC (Audio) come in.
Much like any other type of compression, video and audio data can be extracted back into an uncompressed state and then compressed again. However, there is a permanent loss in quality after it has been encoded at a certain bit rate or a certain resolution. You can extract video data and down-scale it into a lower resolution, say 1080p into 720p, but you cannot do the reverse and expect an increase in quality.
He is making a common error in his post stating that they're encoding the video into MKV. Matroska Video is a multimedia container and works similarly to an archive (think RAR or ZIP). It's meant to bundle subtitles along with audio and video streams into a container that can then be read and played back by software. It is not however the compression format the video is using, which would likely be h.246 or x246, the standard video compression format.
BD, CD, DVD etc. are just storage mediums and don't have anything to do with the data they hold.
In length; when video or audio is recorded it is done so into a raw, uncompressed stream of data, 1s and 0s. It can't actually be viewed until software processes it and interprets it as video or audio. The size of raw video and audio data is extremely unwieldy, so in order to feasibly distribute it to an audience it must be compressed and down-scaled from it's original resolution or bit rate. This is where software encoding and compression formats like h.246 (Video) and AAC (Audio) come in.
Much like any other type of compression, video and audio data can be extracted back into an uncompressed state and then compressed again. However, there is a permanent loss in quality after it has been encoded at a certain bit rate or a certain resolution. You can extract video data and down-scale it into a lower resolution, say 1080p into 720p, but you cannot do the reverse and expect an increase in quality.
He is making a common error in his post stating that they're encoding the video into MKV. Matroska Video is a multimedia container and works similarly to an archive (think RAR or ZIP). It's meant to bundle subtitles along with audio and video streams into a container that can then be read and played back by software. It is not however the compression format the video is using, which would likely be h.246 or x246, the standard video compression format.
BD, CD, DVD etc. are just storage mediums and don't have anything to do with the data they hold.
0
animefreak_usa
Child of Samael
So you can rip above 480P off the dvd in raw data... blew my mind. Now I need to do it now.