Max Size for Burn on 4.7 GB DVD-R Disc

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mwaldron
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Max Size for Burn on 4.7 GB DVD-R Disc

Post by mwaldron »

I have tried several times to burn a project with required/available disc space showing 4.28/4.38 (4.59/4.71) on the DVDPS4 3 BURN screen. Is the last number in parens the reason it won't burn - a hair over to finish. The total is with photo files, video/audio files, and project file selected.
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michaeltee
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Post by michaeltee »

Maybe someone with the precise specifics will jump in but (if my memory serves) your content for standard DVD-R media cannot exceed 4.38GiB (4.70GB). Just a guess, but I believe the "4.59/4.71" figure represents total disc size after file structure overhead has been factored in. This would slightly exceeed the capacity of standard DVD-R media. The problem can likely be solved by trimming down your show a bit or using 8.5GB (7.96GiB) "DVD+R DL" (double layer) media.
sjj1805
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Post by sjj1805 »

Traditionally computer people used binary. Since the equipment they were working with used binary it made it easier to understand if they used the same number system.

In binary 1 Kilobyte = 2^10 bytes = 1024 bytes.
In binary 1 Megabyte = 2^20 bytes = 1048576 bytes.
In binary 1 Gigabyte = 2^30 bytes = 1073741824 bytes.

Somewhere along the line someone must have decided to start rating their products using decimal rather than binary.

In decimal 1 Kilobyte = 10^3 bytes = 1,000 bytes.
In decimal 1 Megabyte = 10^6 bytes = 1,000,000 bytes.
In decimal 1 Gigabyte = 10^9 bytes = 1,000,000,000 bytes.

So a 250 Gigabyte when rated in decimal is about 232.8 Gigayte in decimal.
(or when purchased from the salesman as 250 Gig is reported as 232 by windows)
The math:
250 * 10^9 = 250,000,000,000 bytes decimal.
1 Gig binary = 1073741824 binary.
In binary bytes than new 250 Gig drive is 250,000,000,000 / 1073741824 = about 232.83 Gig as seen by the computer you puchased the drive for.

And that 4.7 Gigabyte DVDR you bought to store binary data on.
4.7 Gigabytes = 4,700,000,000 bytes in decimal.
Or 4,700,000,000 / 1073741824 = about 4.3772 actual computer Gigabytes. Hence, your burning program reports the capacity as 4.38 Gig rather than 4.7 Gig.
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