Instruct: Classify a given review into positive or negative sentiment.
Query: Even Verbatim can fail

A whole stack of DVD+R DL blanks failed! I went through half of a 20 pack before realizing my copy problems weren't software or the burner. All of the movies would lock up 3/4 through. I switched to Memorex but I'm sure it was just a bad batch. It can happen with any disks.