binary solo said:
But isn't that what an emulator would do: include the ability to decode from the 360 disc? Perhaps SOny had an easier time of it with software emulation because the original PS3 has the emotion engine included which means being able to read PS2 discs was baked into the original design. But even so, it is surely merely a software solution because the hardware is capable of reading Xb 360 discs.
I'm going to go ahead and believe Tachikoma on this, that it is necessary to do some minor modification to the games in order for them to run on the Xb one.
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The thing is it's much easier to repackage a game modified for an emulator than it is to perform these modifications in realtime on a disk based title, doing packages also means that they can include all of the title updates on the downloaded package itself, to do that with a disk version it would need to boot the game, download the title updates then apply modification to hdd based title updates that are still asking for content from a disk, which also needs to be patched.
A compiled package for a title gives them the ability to ship a known working game and not have to worry each time a title receives a new title update over XBL whether or not it will break something, since the xbox one then handles the package as an xbox one title (they can still patch it, but with better control over the process), straight up emulating the game would mean emulating much of the security chain and hypervisor functions too.