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All Forums > The Porn Pool > The Porn Pool Forum Page 366 > Download vs dvd
AuthorPost
sir wankalot
Member

UK
904 Posts
5/03
Posted - Jul 16 2010 : 5:34PM
Looking on adultdvdempire i see they advise having 1.5gb of space for video on demand downloads.
Given that the normal film size on disc will be around 4-7GB will there be a significant compression of this movie? Or are file sizes no longer a fair indicator of picture quality?
I heard Brazzers have some high quality HD downloads. Am i right in thinking that they would trump the quality of that same footage bought on a standard dvd....but not that put on to blu-ray?
lurflurf
Member

115 Posts
10/03
Posted - Jul 18 2010 : 6:02AM
That is about right.
File size is only a fair indicator of picture quality if other things are equal.
Standard dvds use MPEG-2 compression so 1.5 GB video on demand downloads may (by using newer compression) look a little better than a dvd that size, but could not compete with a 4-7GB dvd. It is more a matter of how good is good enough than which is better. It bothers me that so many site claim to have "dvd quality" when they clearly do not, and so few offer quality comparable to dvds.
ninja1
Senior Member

2939 Posts
1/08
Posted - Jul 18 2010 : 1:09PM
It's the low-quality stuff (youtube, webcams, flash/streaming/tubes, dinky mp4's on cellphones and ipods and other tiny screens) which allows folks to misuse the term "dvd quality". Anything which looks clean and clear on a laptop-sized screen can get away with calling itself dvd quality and few viewers will complain.
UnkwnUsr2
Member

443 Posts
2/05
Posted - Jul 18 2010 : 1:50PM
DVD compression isn't particularly efficient. The codec is no less than 15 years old. A movie compressed with a modern codec will typically use much less space for the same quality (some 800 MB for an hour = 2 mbit). AEBN offers blu-ray downloads at 6 mbit (2.5 GB per hour) presumably 720p) and DVD downloads at 4 mbit.
DVDs use about 5 mbit and the quality is worse.
Blu-Ray quality via web isn't feasible at the moment. Blu-Ray already uses one of the most advanced codecs available today with up to 40 mbit. When looking for that kind of quality, for 99% of people it's easier to buy a blu-ray rather than download 30 or 40 GB.
Edited by - unkwnusr2 on 7/18/2010 1:55:38 PM



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