I have remastered knoppix v4.0. I have successfully created the iso. The iso is 618mb. I have burnt the iso using k3b. When i insert the cd and boot from it, it does not boot. But when i insert the cd into a pc with windows and check the contents the contents are there.

I have used the howto from : http://www.knoppix.net/wiki/Knoppix_Remastering_Howto