Dvd Disc 4.7gb ?

[teng]

OK! This might be a stupid question. Why is it that DVD Discs are rated as 4.7GB but when i burn one, i can only copy 4.2GB of data into it. What happened to the remaining space?

BTW I'm using a Pioneer DVD-A05 drive and my DVD burner program is Prassi PrimoCD Plus 2.0

 

[KuroSan]

Menu's and stuff.

 

[Gatttsu]

Menu's and stuff.

Pretty much, just think like if you get an 80gig hard drive for your pc, it only gives you about 75gigs of actual space, but that's all partition and etc...

that .5 is used up on the prerequisite items such as menus, and options and forgive me if I'm messing up the terms... but I think it was something to do with index/referrence files or something of that nature?

Edit: that's all just off the top of my head, so I may be a bit off and/or missing something, sorry ^^;

Edit 2: Anyone ever have trouble writing a data DVD with several different programs when you go past the 500 meg mark? I still can't seem to get past that, and I need to make backups (updated my drivers/firmware, I think I need a new burner ; ; )

 

[Bigboy]

500MB is alot to be missing, I know that cant be menues and stuff, considering that whole operating systems used to take a mere fraction of that.

 

[asiamise]

What are you trying to burn? (movie, data etc.) and secondly what app are you using.

Dependant on the app, you can switch the default to burn further on the disc.
I use Neo 7.0 ultra and have mine set to burn up to 4.6GB

 

[Rones]

Read here.

As of 2005, most consumer hard drives are defined by their gigabyte-range capacities. The true capacity is usually some number above or below the class designation. Although most hard disk manufacturers' definition of GB is 1,000,000,000 bytes (only computer memory has a natural inclination towards units that are powers of 2), most computer operating systems use the 1,073,741,824 byte definition. This distinction can cause confusion.

DVD's are advertised in the form that appear largest. OS look at it in the smaller form. You can still use the bigger form, but you must convert the on disk size to see how big what you are burning really is compared to the DVD. It also has to do with sector/track size to an extent.