I ordered these and have never had any trouble with other brands of DVD+Rs. When I went to use one, I had to try 7 to get ONE to be recognized in my DVD recorder. I ended up testing the whole spindle in a little over an hour, and of 100 of them, THIRTY NINE were bad disks. I find that failure rate unacceptable, and will never purchase this brand of DVD+Rs again.Get more detail about Maxell DVD+R 100 PK ( 634056 ).