I’m with Jan, here. Besides, take a look at the file sizes. A typical P2 volume I have is 6.74GB in size. Of that 6.56GB is taken up by the .mxf files themselves, the tiny rest is made up of the sound (only two channels in this instance, admittedly), icons and what have you. And only my Mac journaled HDD, the .mxf files are actually slightly smaller than the wrapper .mov files that FCP creates. Costs per gig being what they are, I see no sense in not archiving the P2 volumes while working with the .mov files.