There is a legitimate argument for ISO preservation. The Xbox 360 hardware is aging; disc drives fail, and servers may eventually shut down. For archivists, creating personal ISOs from owned discs is a defensible practice. Emulators like Xenia (Xbox 360 emulator for PC) can run Metal Gear Rising: Revengeance ISOs at higher resolutions and frame rates than the original hardware—provided you dump your own disc.
: Use a tool like Xbox Image Browser or ISO2God to extract the ISO. metal gear rising revengeance xbox 360 iso
Metal Gear Rising: Revengeance – Reliving the High-Speed Action on Xbox 360 There is a legitimate argument for ISO preservation