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Post by simonashby on May 24, 2011 23:00:51 GMT
Just wondering...how is it that certain old films (particularly Disney) are able to re-release stuff on Blu-Ray? As Blu-Ray is HD, surely, in order to be released in this format, the original film had to be recorded in HD (?) Your whole concept on this topic is flawed. I'm sure someone else can explain this better than I could.
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Post by Elliott Prince on May 25, 2011 18:30:36 GMT
Just wondering...how is it that certain old films (particularly Disney) are able to re-release stuff on Blu-Ray? As Blu-Ray is HD, surely, in order to be released in this format, the original film had to be recorded in HD (?) If something was made on film I suspect it's just a question of the resolution at which it's scanned to go onto DVD/Blu=Ray. Obviously the finer the resolution the greater the size of the file. However, you've got to be aware of the grain size on the original film stock. Wonderful...thanks very much!
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Post by Ewan Montague on May 29, 2011 14:16:10 GMT
what is the average resolution of bruray by the way
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Post by David Robinson on May 29, 2011 16:26:56 GMT
what is the average resolution of bruray by the way Is that Irn Bru ray?
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Post by Ewan Montague on Jun 1, 2011 18:15:55 GMT
Irrron Bru-ray none of your coke-ray mind
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Post by John Wall on Jun 1, 2011 20:13:12 GMT
what is the average resolution of bruray by the way Things like Blu=Ray are storage media and have a capacity. The resolution of the image determines how many it will hold. A DVD, for example, has a capacity of 4.7GB. Compare the (uncompressed) image file sizes from, say, a 2Megapixel and a 10Megapixel camera. The latter is several times the size of the former so you can get fewer onto a 4.7GB disc. Blu-Ray is 25 (or 50) GB - i.e., at least 5 times the capacity of a DVD. Therefore a Blu-Ray disc can hold at least five times the number of pictures as a DVD. If you get into image compression, etc it gets a bit more complicated.....
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Post by Ewan Montague on Jun 2, 2011 18:13:54 GMT
thanks, so what would be the maximum possible resolution of say the average Dr Who TR, quite low I'm guessing.
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Post by John Wall on Jun 2, 2011 22:31:08 GMT
thanks, so what would be the maximum possible resolution of say the average Dr Who TR, quite low I'm guessing. Resolution only really comes into play when the film is scanned - basically how many dots per inch (dpi) the scanner is set to. A modern, high resolution, scanner that's properly set up can recover a lot of information from the film. However a telerecording can never be as good as the original videotape. This is simply because of the method of production. You're basically pointing a movie camera at a TV screen and you're always going to lose something in the process - definitely a little bit at the edge of the frame. The technology available to the likes of the Restoration Team can do wonders and they produce incredible results - but it's never going to be as good as the original.
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Post by Ewan Montague on Jun 6, 2011 17:32:46 GMT
thats what I suspected, but thanks.
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