Id Software has had to rethink the way the content's presented in Rage because of DVD size restrictions on Xbox 360.
The original idea had been to spread the game across five or six wasteland environments, according to lead designer Tim Willits. But DVD restrictions have meant that's been turned into two larger areas - one for each of the two Xbox 360 discs.
"The PC is limitless in the amount of data you can put on it. The PS3 has about 25GB. But the Xbox 360 roughly has 6 to 8 GB of data. We're hoping we can squeeze the game down to two discs for the 360 version," Willits told 1UP.
"I wouldn't say the overall story was changed in any way in order to fit on the Xbox 360 version," Willits said, "but how the player experiences Rage's story has been altered."
Willits previously told Eurogamer that Xbox 360 was the "primary target" for Rage, which echoed comments made by fellow id Software colleague John Carmack that it was easier to realise the potential of the Xbox 360 hardware - though PS3 has its own advantages.
Rage is post-apocalyptic first-person action game with driving elements, set for release in late 2009 or in early 2010. Head over to our August preview of Rage for much more information.