Heratech

Trying to install Windows 7 in Virtualbox on Ubuntu. Kept getting this error message:

"A required CD/DVD drive device driver is missing. If you have a driver floppy disk, CD, DVD, or USB flash drive, please insert it now."

Solution:

I had to turn on passthrough on my dvd drive in the virtual machine settings.

See:

https://help.ubuntu.com/community/VirtualBox/Installation
http://forums.virtualbox.org/viewtopic.php?f=6&t=23157&start=0