On Fri, May 17, 2002 at 03:22:35PM +0100, L. Cranswick wrote:
> Is there a webpage somewhere that describes why DVD-RAM cannot have
> ISO images more than ~700Meg written to it - and possible solutions
> for creating bootable DVD-RAM media (that writing ISO images seems
> to allow quite seemlessly - assuming the images are not greater than
> ~700 Meg)?

Is there any page that says it can have an iso image put on it at all?

Last I used a DVD-RAM it was a block device with, as far as fdisk can see,
1 head, 1 cylinder and 8946816 sectors.  I guess maybe I could do dd
if=file.iso of=/dev/hdc or something, but I would not expect cdrecord
to have anything to do with it.  It has no concept of blanking as far
as I know (you can write zeros on it if you want, which is what a blank,
unformated disk has), or you can create a UDF filesystem on it (mkudf can
do that, among others).  Consider it to be a very large floppy.  Also I
have no idea if any system can boot from it.  Maybe if you partition it,
and then create a filesystem on a bootable partition, you could boot it.
Maybe not. given the geometry is so different.

Basically, why use cdrecord, when dd works?

Len Sorensen


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