This is version 3.1 of the MediaPlay Extend included in the G6. Works with the latest (v4.8) firmware loader. Simply extract the MediaplayExtend folder into the root of your G6 Lite .
On the series s/x you can use a external HD but any next gen games must be on your internal ssd, or you can buy a ssd expansion card, but pricey. Any xbone, 360, or og Xbox games can be played from external tho.