26GB should be fine I reckon. I don't run any consoles, but on computers if you have a really packed hard drive (especially if its fragmented, ie. files that are saved all over) it can slow it down because it has to go and 'search' through all the files to find the one it needs.
But if it's running off a disc, then I can't really see how this affects it. The disc isn't scratched is it?
But if it's running off a disc, then I can't really see how this affects it. The disc isn't scratched is it?