I've thoroughly searched thread after thread of unsupported disc error solutions and can't for the life of me find one that works for me. After burning three XGD3 backups that give me unsupported disc I'm convinced that it has something to do with injecting topology data or setting the right layerbreak. I am burning my backups with an iHas 124b with BurnerMax fw on Verbatim MKM-003 discs and getting great PI/PIF results using kprobe. I am using LT 3.0 and it plays XGD2 backups and originals just fine. A few XGD3 backups I made last year work, but they were truncated because I didn't have an iHas then. Now I'm making the same backups (the right way with an iHas) and getting excellent burn results (PI around 1.5 avg and PIF at 0.08 avg) but still unsupported disc. Could someone clarify what kind of an issue this is?