What annoys me in the bad reviews from other customers, is that they'll only blame malfunctions or slow describability the blanks! Statements such as "blanks are bad" or "are well" say from nothing; in fact, the interplay of blanks and burners should always be considered! If "the way" during firing or otherwise data is copied, played a game or run other CPU and disk access-intensive applications, you should not be surprised when the burning process is eventually canceled. Since BluRays are not written and read by a laser in the nanometer range and can even aggravate the tiny tolerance of a BluRay burner, depending on the manufacturer or model writability / readability of a BluRay or impossible are mE these sweeping statements "blanks are bad" simply pure nonsense ...! So: "Together with my burner / player and with my operating system Win7 and" reasonable "use my PC during the burning process do these blanks with me super!"
Addendum 25/11/2014 or 02/25/2015: This batch is unfortunately problematic because Panasonic Player BDT 100 and BDT 500 well clear in earlier batches came with these blanks, but in this batch now basically at about 100 minutes of the film ( Once the second layer to be read) after a few artifacts then hangs up even if you have burned with 2x and without any error message from the burning program (Nero). On his big brother BDT 500 are still partially run, a further player Samsung BD-H6500 also has problems. Meanwhile, resorted to Verbatim that work perfectly until now (2x burned). Due to these circumstances, retroactive 1 star deduction ... One can of these blanks still the first layer so as to use max. 23GB burn it - works. Second Layer is not possible with any of the 3 mentioned player. Favorites are still expensive Verbatim!