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Old 03-23-2003, 10:19 PM   #1
GarethCS
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Gareth Chan Sing
San Fernando, Trinidad and Tobago
 
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what is the most that can fit on to a 4.7GB DVD.

I recently purchased a DVD+R/RW burner. I'm using Nero to nurn DVD's and it will only let me burn no more that about 4.4GB onto a DVD+R. I havent tried a DVD+RW yet.
Could anyone tell if this is how its suppose to be or is something wrong here?

Thanks.
 
Old 03-24-2003, 01:39 AM   #2
elvis
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Dan
IT and Networking Systems Administrator
Kanuka Studio
Brisbane, Australia
 
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marchitecture to the rescue!

smart marketing people like to tell you that something can hold 4.7GB. this is complete BS. it can hold 4,700,000,000 bytes.

now if 1GB = 1,000MB, and 1MB = 1000KB, then all would be well. but it isn't the case. the same for 1GB = 1024MB (2^10), 1MB = 1024KB, and again for bytes

some quicky maths:

4,700,000,000 bytes / 1024 =~ 4589843 KB
4589843 KB / 1024 =~ 4482 MB
4482MB / 1024 =~ 4.377GB.

there's your 4.4GB. minus a few bytes for track lead-ins and lead-outs, disc TOC and the like and you've got your exact amount.

welcome to the world of marketing vs engineering. you're not the first to be bitten by this, and you won't be the last either.
 
Old 03-24-2003, 03:35 AM   #3
GregHess
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Greg Hess
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USA
 
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I get about 4.2-4.3 gigs on a DVD-R with the Sony DRU500A. (Very close to elvis's math).
 
Old 01-14-2006, 06:00 PM   #4
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