Guys,
Not sure if this is your issue, but I finally got one of my Hitachi 47 drives reading XGD3 backups last night on LT 2.0 after messing with the laser pot settings. I had two backups left over that were burned truncated and never re-burned them. Space Marine and Gears 3. Neither one of them worked in the Hitachi and it came up with the same error symptoms. Would say Play Game for a split second and then act like it was going to launch only to get dirty disc then unrecognizable. Only iHAS fully burned discs worked (Skyrim, Batman AC, Halo CE, BF3). Both truncated backups still booted fine in my 2.01 Samsung console.