if the hardware emulation in VirtualBox is poor, can we be
comfortable with the products it helps us produce, say by remastering? Might it not inflict some distortion or artifacts into the process?
... I think "Windows 7 + VirtualBox" isn't a good choice. Perhaps you will consider doing a Multiboot installation on your Laptop: for example Windows 7 and Debian? (Don't forget backup!)

"Debian + VirtualBox" runs for me without any problems. But why not work and do your experiences with Debian first?

Greetings Werner