Can I use Nortons Ghost to clone my TiVO hard drive? I got a bunch of 300G drives that I now can't put in 7200.9

But I have some 250G drives that I want to put in. So can I clone the 120G drive in my TiVO now to a 250G? And then I follow the wiki for putting in the 2nd drive? Or is there some other method for cloning drive 1 to a new drive?