Can somebody explain me the following:

I am trying to remaster Knoppix CD-version. I have removed kde-i18* files and some other stuff emptying around 280 MB of space. I have added only around 20MB of data afterwards. When I try to rebuild the image using the following commands:

mkisofs -R -U -V "KNOPPIX.net filesystem" -P "KNOPPIX www.knoppix.net" -hide-rr-moved -cache-inodes -no-bak -pad /mnt/hda4/knxsource/KNOPPIX | nice -5 /usr/bin/create_compressed_fs - 65536 > /mnt/hda4/knxmaster/KNOPPIX/KNOPPIX

(It informs me that around 1940MB of data was compressed)

cd /mnt/hda4/knxmaster

mkisofs -pad -l -r -J -v -V "KNOPPIX" -no-emul-boot -boot-load-size 4 -boot-info-table -b boot/isolinux/isolinux.bin -c boot/isolinux/boot.cat -hide-rr-moved -o /mnt/hda1/XXX/knoppix.iso /mnt/hda4/knxmaster

The output ISO file is around 730 MB! How the heck is this possible? Is Klaus using some additional parameters with the mkisofs command to achieve better compression or what? Please advise.

Thanks