maybe not all Blu-Ray games will be so big. Wii ISOs are all 4.7 GB or somewhere like that but when you put them ona HDD some of them can only be a few hundred MB. I know that there's a big difference between Wii and PS3, but maybe some games will only be like 10gb or so. Still pretty big, but if you have an external hard drive to play them on, you could fit about 10 games on it