Nero Burning Rom and DVD+R capacity

[vfx_man]

Hey there... hope this is the right forum for this post...

Anyway, my dvd+r obviously has a 4.7 gig capacity, but when I go to burn data to one using Nero Burning Rom (version 5.5.10.35), it will only let me burn up to 4.5 gigs? What is the reason for this? Can it be fixed to allow for 4.7 gigs, or is there some technical thing I'm not aware of?

Thanks.

[willy_annand]

Check out the glossary on this site.....
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DVD-5 is a single sided single layer DVD that stores up to about 4.7 GB = 4 700 000 000 bytes and that is 4.38 computer GigaBytes where 1 kilobyte is 1024 bytes(4 700 000 000B/1024 = about 4 589 843KB/1024 = about 4485MB/1024 = about 4.38GB) . Video DVD, DVD-R/W and DVD+R/W supports this format. Often referred to as "single sided, single layer". DVDRhelp DVD information
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[vfx_man]

Thanks for the info Will... didn't realize there was a glossary on this website -- very cool and informative. This is by far one of the best resource websites I have found for dvd authoring info.

Although, if you didn't know about the weird translation of the dvd r 4.7 GB (i assume this amount refers to storage of video as in authoring video to the disk) to the 4.5 / 4.3 GB of computer storage available, you'd never guess it because manufacturers of dvd media (TDK, Sony, HP) don't mention this conversion issue on their media packaging. In fact, Sony prints on it's packaging, "Provides 4.7 GB of digital storage, or 120 minutes of video." Now because I've learned of this conversion thing, I am assuming that the statement is just talking about video storage and not computer data storage. But why not mention the computer storage capacity? I dunno, seems kind of misleading to me.

Anyone have any thoughts?

[Craig Tucker]

Have you ever bought a hard drive, they use exactly the same method for classifying drive size. It is a bit misleading, makes the drives seem bigger than they are. Its because 1 kilobyte is 1024 bytes. But when classifying hard drives or DVD's the manufacturers assume 1 kilobyte is 1000 bytes. It does not matter whether you are storing video or data, the storage space is the same.