iso image size version 8.10

[Tommy Trussell]

On Sat, Feb 14, 2009 at 1:30 PM, Ray Parrish <crp at cmc.net> wrote:
> Hello,
>
> 715,592 / 1024 = 698.8203125 MBs which is just under the 700 MB limit of
> most CDs. I just downloaded the Ubuntu 8.04.2-desktop-i386.iso and it is
> only 679 MBs. However when I burn it with wodim from the command line,
> wodim claims it is burning a total of 834 MBs to the disc, and after
> ending up with a total of 8 worthless coasters, instead of getting any
> good CDs, I have given up on making a new Ubuntu Live CD.
>
> I read man wodim very carefully, and did the burn on the slowest speed
> available on my burner, with all of the correct options enabled, but
> none of the attempts I've made will boot, they always fail part way
> through loading the kernel after the initial menu shows, no matter which
> option I select. Here's the actual command line I used for the last
> burn, after carefully testing it withe -dummy option and getting no errors.
>
> ray at ray-desktop:~$ sudo wodim -v -raw96r -speed=0 dev=/dev/scd0
> gracetime=20 driveropts=noburnfree -data tsize=731869184
> "/home/ray/Downloads/ubuntu-8.04.2-desktop-i386.iso"
>
> I did also do a check on the MD5sum for the image file before burning as
> well. One thing that I did think was odd, was that wodim insisted on
> burning a 150 byte lead in at the start of the track before starting on
> the actual data.

I don't know wodim, but "lead in" makes me think maybe it could be
burning it as an audio CD?

I haven't had any trouble burning .iso files using the right-click
"burn to disk" feature in nautilus, even on slower systems where you
might expect speed to be a problem ...