Instruct: Classify the given Amazon review as either positive or negative.
Query: Disappointing

First I did not buy from this seller. But I did buy the JVC Taiyo Yuden Silver Lacquer Printable 8X DVD+R Media 100 Pack. This is the first time I tried this brand and did so because they are supposed to be the best. In the first 50 I had almost a 50% fail rate. I thought my dvd burner was going out. Then I changed the burn speed to 4x from 8x. That helped. I then had a fail rate of around 25%.That's as bad as I was getting from cheap DVD blanks. Well I finally used them all. Then I bought Verbatim 50 pack of +R.When I started using the Verbatim, I realized that there was nothing wrong with my dvd burner. I've Burned 15 dvd's and have not had one fail on me. I'm also burning at 8x. I won't buy Taiyo Yuden blanks again.