Format 700 MB 80 Minute CD-RW disk

[John]

Hi:
When I format a 700 MB 80 minute CD-RW disk, using the
direct CD format utility and HP CD writer 9300i there is
only 571 MB free space showing on the disk, is this
normal? if not will someone please explain where I miss
the boat.

TIA

John

 

[Guest]

Formatting overhead, how does a 40 gb hard drive end up 37
gb?

 

[Michael Solomon \(MS-MVP Windows Shell/User\)]

Yes, that's normal.

 

[Ken Blake]

In (e-mail address removed)

Formatting overhead, how does a 40 gb hard drive end up 37
gb?

The reason a so-called 40GB hard drive ends up as 37GB has
nothing to do with "formatting overhead."

All hard drive manufacturers, in a deceptive attempt to make
their drives seem larger than they are, define 1GB as
1,000,000,000 bytes, while the rest of the computer world,
including Windows, defines it as 1024 x 1024 x 1024
(1,073,741,824) bytes. Do the arithmetic yourself, and you'll see
that 37GB is roughly 40 billion bytes.

--
Ken Blake - Microsoft MVP Windows: Shell/User
Please reply to the newsgroup

 

[Jason Tsang]

Packet writing adds overhead.
What you see sounds correct.

If you want 700 megs, use the normal ISO/Joliet file system.

 

[Alex Nichol]

Formatting overhead, how does a 40 gb hard drive end up 37
gb?

The disk is 40 GB as measured quiy=te legitimately in decimal G -
billions. But disks are formatted around a unit of 1024, and in that
context 1G=1024x1024x1024 - = 1.0736 billion. Divide 40 by that. . .