How much space do Blu Ray movies take up on a BD disk?

I wanted to know exactly how big the movies are on the Blu Ray disks when you buy them?



I'm not talking about the actual size of the Blu Ray disks (Which the dual layered Blu Ray disks are 50 gigs I think) but the data on them.



Also, have the movies on the disks changed in size since the launch of the Blu Ray players in 2006. For example: comparing X-men 3 to Dark Knight in size.How much space do Blu Ray movies take up on a BD disk?
Yes. The movie size is between 15-30 GB with some below that and some above that depending on bitrate and movie length. There aren't too many movies that exceed 30GB because of problems with manufacturing process and a high number of jitter errors on the outer tracks on dual layer discs. Right now there are only two methods of making discs with two or more layers... the "peel and stick" and embossing methods.



Here is a list of some Blu-ray titles with disc information compiled with BDInfo.



http://forum.blu-ray.com/showthread.php?鈥?/a>



X-Men 3 is about 21.5GB and Dark Knight is about 35GB with Dark Knight using a slightly higher bitrate.
Blu-ray movies vary in size, but 15-30 GB is a good range for the movie and soundtracks. Add to that for special features.



Movies are usually judged by their length. While different video codecs will allow somewhat different degrees of compression (i.e. the same movie will take a bit more or less space), and the type and number of soundtracks can make a difference (particularly "uncompressed" tracks) to space requirements, the length of movies hasn't been effected by the advent of Blu-ray.



Remember that movies are (usually) made for movie theaters ... and DVD and Blu-ray are simply two other mechanisms to deliver the movie. As an aside, that's also why most movies are widescreen format and don't fit TV screens ... they are made to show in cinemas.



So ... the total space taken up on Blu-ray disks has probably increased on average (it's there so studios will be tempted to use it for extras and increased sound choices ... at least on blockbuster movies) ... but the movie itself isn't any longer.How much space do Blu Ray movies take up on a BD disk?
25-30 gb is the average amount used on discs now(some even less HD DVD only held 25-30 gb but did not utilize all of it and many blu-rays are direct ports a la blazing saddles, full metal jacket, etc.) they have even been in the talks of a 3rd layer BD disc which would store a whopping 74gb and some change. I don't think the disks have changed size as much as the files are just getting bigger. The X-men vid and soundtrack files are much smaller than that of the Dark Knight. I wish they would use the whole disc in some cases, like the "heroes"box sett which in HD even would not take up as many discs as they stretch them out over. The 8 gigs the other guy stated would be the average for Standard Progressive DVDs, but not Blu.How much space do Blu Ray movies take up on a BD disk?
That depends entirely on the movie and its audio soundtracks. A 3 hour movie will be larger than a 90 minute one and a movie with TrueHD, Dolby 5.1, Spanish, French, Japanese, etc. will be larger than one that has only one soundtrack. I haven't seen file size specified on any websites selling Blu-rays. It might by on the BD packaging but I doubt it.



You know the file can't be any bigger than the storage capacity of the disc itself--25GB or 50GB for dual layer.
They are usually like 8 gigs in size give or take a gig

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