Why 4.37 GB?

[DVD Addict]

I seem to be able to fit more than 4.37 on dvd+r. Why do most guides say 4.37 GB is the limit for dvdrs? I don't understand..

[chazzie]

Don't quote me on it, but I assume DVD's can be overburned just like CD's....

[Baldrick]

it is more like 4.38 gb
https://www.videohelp.com/dvd#1000

[DVD Addict]

Well I just burned a 4.48 gb movie ISO on my 4X TDK drive...

[Laddydaddy]

Have you played it all the way through yet? By the way, what part of Philly are you from?

[Baldrick]

Are you sure it is 4.48 GB? and not 4480 MB???

[housepig]

is it possible that when you burned 4.48 Gb on a disc, you had 4,480,000,000 bytes?

Disc capacity is 4,700,000,000 bytes... but since a kilobyte is actually 1,024 bytes (not 1,000) and a megabyte is 1,024 K (not 1,000 K) and a gigabyte is 1,024 megabytes (not 1,000) when you do the math, disk capacity ends up being 4.38 Gb.

But most manufacturers don't put 4.38 on a disc, they put 4.7 - they are counting in 1,000 = 1,000 = 1K, whereas most computer systems count 1,024 = 1,000 = 1K

does it make sense? no, it's a stupid bit of semantics. Is that the way it is? yes. check out www.dvddemystified.com and the DVD FAQ for more info.

[DVD Addict]

Doh it is bytes lol my bad. Ladydaddy, I live in the city.

[Laddydaddy]

I know you live in the city, but what part, West Philly, South Philly, etc.?

[gcutler]

When you had a 1.2 or 1.4MB floppy drive or a 120MB Hard drive (in the old days) the rounding off was not such a big deal. But as we get into the multi-gigabyte realm, the rounding off now makes a big difference.

But if you look at old media there was always "bad Sectors" on hard drives and floppies which gave you less. Now we don't get many bad sectors on media, we get rounding downs

[txpharoah]

Not again... read people read...

4.38 GB = 4472 MB = 4700000 bytes = "4.7 gig" DVD-R/DVD+R

These numers may vary a little from person to person or program to program, but not by much. Nero says 4500MB, but other specs say 4472MB. Six one way, half a dozen the other.

You can overburn too, but not by much, and it generally won't work real well.