Alright, I'm gonna get called a noob for this but I burn xbg3 with imgburn and follow all instructions (though with the new imgburn - you pick truncate instead of overburn, right?) It has LT v2.0, updated dash, and every xbg3 still says PLAY GAME, goes black, then comes back to dash. Any answers? I'm running out of error options.
So currently, LT+ 2.0 is available for all drives apart from Hitachis, which is still in progress. There is also LT+ 2.1 in progress for Samsung drives and the reason given for that is "XGD3 big disc fix", which I assume is either related to the new burning firmware that's about to be released, or it's related to support for blank discs that are larger than existing DVD+R DLs.