... some years ago I also used VMWare; in the meantime I prefer VirtualBox. But for remastering purpose with my scripts there may bee no difference. In both cases you work with a HD installation of Knoppix, no matter whether using a virtual drive within a virtual machine of VMWare or VirtualBox.

Greetings Werner * http://www.wp-schulz.de/knoppix/summary.html
Own Rescue-CD with Knoppix (Knoppix V6.4.4 remaster)