[Jacke]

My brother doesn't have access to internet, and I'm looking to update the backwards compatibility on his X360 so he'd be able to play all three Halos. However, Microsoft's page only has info about it for Windows.

I've looked around for what format the Windows CD Writing Wizard uses, and found a reference to "Live File System" (source, Google cache since the page seems to have been changed), which after some more googling seems to be UDF. But I don't know of any ways to burn UDF CDs iin OS X...

Does anyone know if it would work with just ISO-9660?

[gradient]

You would probably get better feedback on the xbox.com forums then here.

[P]

You can make a UDF image by using an app designed for DVD images, such as DVD Imager. Make it small enough to fit on a CD and burn it using Disk Utility.

[Jacke]

Turns out it worked fine with just an ISO-9660.