Recently I put an xbox 360 disc that was backwards compatible (CoD MW3) because I was bored of what games I had on my one. Later on, I decided to go back to playing some xbox one games, but they stopped working. It always gave me the message to "insert the disc". I tried with 5 different xbox one games, and the discs aren't scratched or anything. It will however, read 360 discs. Have I put it in some sort of mode that only reads 360 discs that I can change in the settings, or is it some sort of disc reading problem to do with the xbox one? In short, is this an easy fix or do I need a new xbox? Thanks.