Question about DVD Burners

[hawthorn]

I am looking at purchasing a cheap dvd burner, and I am wanting to find out is there anything with a dvd burner that only some dvd burners will let you do eg like burning 90 minute cds and overburning on a CD Burner how only some CD Burners will let you do this. So is there a similar feature with some dvd's like some are slightly larger and require a different type of burning etc.

[overloaded_ide]

Not an expert, but I think all DVD r disks are the same size 4.7gig.
Don't think you can opver burn, and if you could nothing would probably read it anyway! Enough problems with compatibility already without adding over burn

Although I have seen smaller DVD r disks like those mini cds and business card cds, someone makes those in DVD r now too.

And also 4.7 on disk label is only 4.3 really. Kinda like other computer stuff, numbers don't match up! Your first hard drive is drive 0 (not 1) and you never get 80gig drives that hold 80 gigs either. A gig is OVER 1,000 but most the time it is rounded off to an even 1,000 like for drives and disks.

I wish banks counted like computers, start as 0 being the first one. I'd go cash in alot of $100 bills for $1 bills, I could use that extra $1! 0-100 is 101

If you have 0 of something in computers, is that really -1 then?

[VinnySem]

DVD-R Authoring disks are 3.95gig, while DVD-R for General use are 4.7gig. General use media are the most common; Authoring disks are used on special DVD-R Authoring drives, not the common drives that most of us have.

When you see hard drives and DVD-R media talk about size in gigabytes, they are talking about billions of bytes. Because the computer world is base-2 numeric system (binary), numbers are powers of 2. there is no binary 1000, there is 2^10, which is 1024. 1 kb=1024 bytes. 1 megabyte = 1024 kilobytes. 1 gigabyte =1024 megabytes. So you have a DVD-R disk that is "4.7 gig" but is actually 4,700,000,000 bytes, which is actually 4.3772 gigabytes. An 80 gig hard drive is actually 80,000,000,000 bytes, which equates to 74.5058 gigabytes.

Gotta love marketing.