Is there an easy way to store the decompressed (which is what like 2.5 Gigs?) on the hard drive. Then load that, from the hard drive, into RAM and run it from RAM?

Should I store an uncompressed version on a DVD then boot the DVD to RAM?

What I want to do is run as fast as possible from RAM, which means uncompressed. Obviously if I could load to RAM from the hard drive it would be faster than from a CD/DVD. I am willing to boot from a CD/DVD into RAM if that is the only option, as I don't expect to be rebooting all that often, I was just hoping for to forego the CD/DVD.

This is turing into, perhaps, the perfect excuse to build a bursting-at-the-seams-with-memory rig.