Copied all files from DVD bittorrent download (boots and runs fine) to root file named DVD.

Replaced /boot/isolinux/isolinux.cfg with customized copy to enable fast boot, lang=us, and myconfig=scan.

Ran 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 KNOPPIX40.iso /root/DVD.

Opened k3b and selected KNOPPIX40.iso. The md5 sum check stopped at 48%.

I ran the burn anyhow on DVD r/w. The result was a 48% burn, the boot sequence ended up with large X in center screen and no KDE activity in the rom ensued.

It seems half of the KNOPPIX/KNOPPIX files failed to burn.

The mkisofs total was 4119MB and the properties readout was 4318263616.

Is there a need for a new mkisofs for DVD burns? Two knoppix files are provided in the DVD, one is a normal type and the other is Unionfs related.

I suggest the Unionfs related file is not recognized by the mkisofs routine above.

Please advise corrective action!