MY CD IS A 700MB CD BUT THE ISO IMAGE 716MB! WHAT DO I DO?

[Markus]

No need to change burning software, you can just patch Nero as you obviously have one with the bug.
You'll find a link to a patch in my previous post or via the faq on downloading and burning in the Docs section on this page.
The faq also contains how to burn an iso with Nero.

[Hunkah]

I agree what i said was confusing, but it was true.

All he has to do is choose the "Disk image or saved project" and direct the wizard to the *.iso file.

Then Nero will burn the image (contained within the *.iso file).

Think of an .iso file as a zipped up package of an entire CD. It takes all the contents of a CD and make a huge file out of it. The .iso tends to be bigger than the actual disk at times, I think because it is probably because it adds configuration information as well. But who knows!

Any clearer?

[ovidiusoft]

I download the image th other day and it is 16MB to large for the disk. Are there higher capacity CDs out there?

Yes, there are 90 minutes (800MB) and 99 minutes cd's (880MB). Most of the cd-rw units will not detect the real capacity and you will have to overburn the cd's, and the others already told you.

Good luck!

[windos_no_thanks]

I agree what i said was confusing, but it was true.

All he has to do is choose the "Disk image or saved project" and direct the wizard to the *.iso file.

Then Nero will burn the image (contained within the *.iso file).

Think of an .iso file as a zipped up package of an entire CD. It takes all the contents of a CD and make a huge file out of it. The .iso tends to be bigger than the actual disk at times, I think because it is probably because it adds configuration information as well. But who knows!

Any clearer?

Yes a bit, you are probably right about what to do to get Nero to burn from an iso (never used it myself so I wouldn't know). Your description of the iso file is partly wrong though. It does not contain any more (or less) infromation than what will be written to the CD, it is exactly the same size as the finished disk will be, and the contents are also in the same format. IMO the best way to think of the iso file is a CD without the physical disk, once you attach it to a blank disk using the burner you get the finished CD. You can easily show that this is the case if you have a HD installed knoppix and more than 700MB free on the HD, for instance like this:

dd if=/dev/cdrom of=foobar

once that has finished you can compare the foobar file with the iso file you used to create the CD (with diff for instance) and you will see that they are identical, assuming that the burning process was done correctly earlier.

[L. Duke]

I had the same problem with Nero 6 Express. It won't let me burn the iso on a 700MB CD.

I downloaded the freeware CDBurnerXP Pro and it worked fine.

[IsaacKuo]

Here's one way to look at it--an .iso is simply an image of what's on the disc. It's exactly the same size as the disc. However, what happens if you try to write it to the disc as a file?

In that case, the burner software tries to put the file knoppix_image_file.iso on the disc, and ALSO some extra file system information which says "There is one file on this disc and it's name is knoppix_image_file.ico and it's located in sectors XX to YY."

This file system information is relatively small, but it still requires some extra space. Since the .iso image is exactly the same size as the disc, even this small amount of extra space puts it over the top. It won't fit!

[Cuddles]

I explained this once before, so, here goes...

Anyone who has ever "duplicated" two floppies and only had one floppy drive device "knows" what an image of a disk is ...

Or, made more than one copy of a floppy disk, same situation...

An "image" is made from the original source, this "image" is probably placed on the hard drive, as a temporary file, and that "image" is then used to create the "target" disks. Since on a single floppy drive system, you can't do a disk-to-disk duplication, something must take the place of one of the drives. So, when you only have one floppy drive, it becomes a disk-to-image-to-disk, instead of a disk-to-disk. What the people did, was, to save the "image" file, and that is what you are using to create your "duplicate" CDROM.

Most, at least the ones I know of, CD Burning Software, allows for "image" burning, so that you can make one "copy" of your CDROM as the source, and then use that "image" to make as many "duplicate" CDROM's as you want from it.

Hope this helps,
Ms. Cuddles