«How does an hour long load process for FFXI sound? Not good? Well you’re getting it! The Xbox 360 may be next generation and all, but based off the performance of the FFXI beta (and we’ll remind you that it is an early version of the title — there may be some improvements before the final), it’s still pretty slow at copying data over from DVD to hard disk. FFXI takes up about five gigs of space on the hard disk, by the way, so you’ll want to make sure that you’ve got enough space. The Japanese X360 has about 11 gigs left open in factory default state, which left me with an uncomfortable 6 gigs after FFXI had been installed.»
http://xbox360.ign.com/articles/674/674993p1.html