When it comes to porting Final Fantasy XIII to Xbox 360, Square's of the opinion that it's not the size of the disc that matters; it's how you use it. FFXIII producer Yoshinori Kitase says that his team will "work on trying to find ways to compress the pre-rendered movies and voice that take up a lot of data in ways that don't affect the final product."
Kitase is also looking to the arcane arts of graphics programming "to ensure that the quality [of in-game visuals] remains the same between the two versions," as well. We suggest he trademark the name "Squeaze" for whatever method the team eventually settles on for cramming a Blu-ray based game onto (a number of) DVDs. Such a catchy name will certainly make the tech more marketable to other developers bringing their PS3 exclusives to 360.