How can I store/backup Virtual Box's Virtual PC's data/config on another drive?

Question

I can create virtual hdd's on a separate drive, but how can I do the same for the virtual PC's data/config so that say I do a format, I can restore all my Virtual PC's

Answer 1

From this page:

You can just copy the files inside the directories you mentioned, that is, the virtual harddisk (.vdi) and the xml-based description of the virtual machine. I did this twice, even cross plattform (a XP geust from an OS X host to a Windows XP host, and an Ubuntu guest from a Windows Vista Host to an OS X host) and it worked fine

Or result to the import and the export sections of the user manual. :)