Instruct: Classify Amazon reviews into positive or negative sentiment
Query: TDK DVD -R Blanks have a very high failure rate

I have used a whole range of DVD -R blanks, from brandless ones to the very high end. One of the worst is TDK. The failure rate is almost 50% and this is for my computer dvd burner and my DVD recorder. I use Nero Burning suite as well as Roxio and the results for TDK blanks are consistently bad. I have had very little failure with Maxell and Fuji. I am truely amazed that this product is being given 5 star ratings by some reviewers.