Microsoft is running a public preview program to test out "an updated Xbox 360 disc format".
"We are conducting an open call for US based participants* for a public preview to help us prepare for an updated Xbox 360 disc format," Major Nelson announced today.
The Xbox 360 currently reads games from standard DVD-format discs, which hold up to 8.5-8.7GB on dual-layer discs. This has proved restrictive to some developers, who have been forced to spread games out over multiple discs.
PS3's Blu-ray format holds up to 50GB on a dual-layer, which allowed games like Final Fantasy XIII to feature higher quality sound and cutscenes due to its ample space. Could MS be preparing a higher-density disc for the Xbox?
It offers no further details, with the Major saying: "This is an important update as we continually strive to improve our products and we could not do so without the help of our great Xbox community."
You don't have to do it for free, either. "As part of the preview program, you will receive a copy of Halo: Reach along with other possible rewards," explained Nelson.
MS is calling for "multiple thousands of participants" so it says your chances of getting into the beta are pretty good although it's currently only open to US-based gamers. Xbox Live Silver members can apply, but priority will be given to Gold members so don't fancy your chances.
Head over to this page to sign yourself up.
MS has also recently detailed new technology that may help make Kinect faster at reading your movements.