In the statistics page, can a column be added showing the total size of each system? (ie. the sum of the size of all tracks of all discs for each system).

I know I can get this by parsing the XML (either via script or spreadsheet) and then doing the sum, but I think it would be easier/better for users to be able to see that in the stats.

If I vote "yes" does that mean we'll have to wait another 6 months+ before seeing the multisession feature added to redump?

I can make no guarantees; I'm just hoping the more votes, the more the admin(s) will see it's an important feature.
Let's see what iRobot says.