>> I'm partial to VirtualBox. Is that on any of the Debian DVD'S? > No, because it isn't free software. > See <https://wiki.debian.org/VirtualBox> for details.
I believe what you wrote is slightly misleading: the base VirtualBox software seems to satisfy the definition of Free Software just fine. The above wiki page mentions two problems for Debian packaging: - There's a proprietary "add-on" for it, but that doesn't affect the status of the base system. - There's a lack of interest from the main developers to provide long-term support for older releases which made it too much trouble for Debian's security team to provide support for it, so it's not in Debian any more. Stefan