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afterdawn.com > forums > dvd±r discussion > dvd±r media > what is the real size of dvd?
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What is the real size of DVD?
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bang
Junior Member
_ 		30. November 2002 @ 16:36 _ Link to this message    Send private message to this user   
Nobody can answer this! What is is the size (in bytes) of a single layer dvd-r and can it be overburnt like a cdr? What is the size (again in bytes) of a dual layer disc?
No site on the net has the exact size only a nice range (3.95,4.36,4.4,4.7,4.73 etc).
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nightfly
Junior Member
_ 		3. December 2002 @ 16:44 _ Link to this message    Send private message to this user   
Several sources on the net list the capacity as 4.37 gig. That seems to be about what I get, so I go with that. Like hard drive capacity, advertised and real world differ a bit, and never to the customer's advantage.
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Biosgain
Suspended due to non-functional email address
_ 		3. December 2002 @ 23:36 _ Link to this message    Send private message to this user   
dual layer is about (i know you asked exactly) 3.7GB on 2nd layer.
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Email me if I don`t reply to a previously answered post. I`m probably fishing :)
dRD
I hate titles

35 product reviews
_ 		4. December 2002 @ 08:35 _ Link to this message    Send private message to this user   
Exact details:

DVD-5.cfm" class=korostus target="_blank">http://www.afterdawn.com/glossary/terms/DVD-5.cfm
DVD-9.cfm" class=korostus target="_blank">http://www.afterdawn.com/glossary/terms/DVD-9.cfm
http://www.afterdawn.com/glossary/terms/dvd-10.cfm (this is the dual-sided blank media they advertise as "9.4GB" -- nothing to do with DVD-9 - see above)

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Petteri Pyyny (pyyny@twitter)
Webmaster
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bang
Junior Member
_ 		5. December 2002 @ 20:34 _ Link to this message    Send private message to this user   
Thanks for the responses, but I did ask exact (as in bytes, the way windows reports). It just seems that I am correct, nobody knows. the best I found was 4,734,720,000 bytes but I don't know whether it is correct.
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A_Klingon
Moderator
_ 		8. December 2002 @ 06:11 _ Link to this message    Send private message to this user   
Four Billion, Seven Hundred And Two Million, Nine Hundred And Eighty-Nine Thousand, One Hundred And Eighty-Two Point Twelve Bytes.

(4,702,989,182.12)

If you have to ask me how you can have twelve one-hundredths of a byte, I'll have to fib to you. :-)

No, seriously, it's just simple math:

DVD5 = 4.38 Gigs
4.38 x 1024 = 4,485.2 Megabytes
4,485.2 Megs x 1024 = 4,592,762.88 Kilobytes
4,592,762.88 Kb x 1024 = the above figure, 4,702,989,182 bytes.

I imagine there's a built-in bit of 'extra' space on each disc; no one knows how much exactly, I suppose every disc is different and I've never heard of 'over-burning' a dvd, or if it's even possible, but the above amount is supposed to be the least *guaranteed* amount of space.

Whoever invented the lying phrase, "4.7 Gig Capacity" should be shot.

-- Mike --
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This message has been edited since posting. Last time this message was edited on 15. December 2002 @ 00:19
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timmshady
Suspended permanently
_ 		14. December 2002 @ 20:38 _ Link to this message    Send private message to this user   
dvddecrypter tells me that my blanks have a capacity of 4,706,074,624
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afterdawn.com > forums > dvd±r discussion > dvd±r media > what is the real size of dvd?
 

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