I flashed my 360 with ixtreme 1.4. Bought some HP DVD+R DL discs at Walmart and backed up 3 games with no problem. My friend gave me a 20 pack of Office Depot DVD+R DL. The Office Depot says they are unreadable or unplayable. So I figured it was due to the cheap discs. Ordered the Verb DVD+R DL discs and I get the same error. Is there a reason why the HP discs are the only ones that have worked? I have burnt 15 games with HP discs with 100% success rate. But I have all of these other discs that should work (verbs) but don't. Could it be the firmware? Should I reflash? Should I switch to a diffrent firmware?