Re: Compressability if ISO images (was Re: ISO image)

[Barney Wrightson <barney.wrightson@dsto.defence.gov.au>]

Ron Johnson wrote:
> On Mon, 2003-01-13 at 21:13, Paul Johnson wrote:
>
> > On Mon, Jan 13, 2003 at 07:41:50PM -0500, alex wrote:
> >
> > > A real beginners question.   What is an ISO image?   
> >
> > An ISO image is a file containing an ISO-9660 filesystem.  It is,
> > essentially, a bit-for-bit copy of a CD ROM.  You can use this kind of
>
>
> Hi,
>
> Why don't these images compress well?  Specifically, I took the
> Knoppix V3.1-2002-12-12-EN iso and gzipped it, but only got 1%
> compression.

Knoppix is using a compressed fs and has equivalent to about 2Gb of 
uncompressed data on it. Isos of uncompressed data may zip better.

Barney