I have a Toshiba SD-5272 12x DVD writer with the latest firmware.. I purchased a 20 pack of Verbatim 16x DVD+R [#95038] from Sam's Club. The ID# on the disks is MCC-004. DvdInfo says that the disks will burn at 2.4x through 8x and the disks are rated at 16x.. Nero, Dvdshrink, Dvdlabpro, NTI, and Alchohol all say that the disks are either not present or that the disks are full and to put in an empty disk.. Toshiba says the disks should write, Verbatim hasn't answered my queries. Anyone else have this problem ??