I burned a lot of RICOHJPNR01. Those branded TDK, Fuji and Sony were simply perfect. All my drives liked them very match (NEC 1300, 2500, 3500, 3540, Liteon 832s, Benq 1640). PIE/PIF scans at least as good as TY's. NEC 2500 and later, as well as Benq 1640 burn them @ 8x perfectly. Imation branded R01's were of lower quality, though also acceptable. If TY disks were non-existant, I would use RICOHJPNR01 from mentioned above brands.