Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.

Example input: I've read this book with much expectation, it was very boring all through out the book
Example output: Negative
Example explanation: Review writer does not like the book because it was boring, therefore it is a negative review.
Q: Having seen "The Dance" before, I was totally disappointed. I was expecting at least the full songs from the CD, but it has only interviews with the band and commentaries. Also the picture quality on my dvd (I bought Region 2) was just bad quality. Not worth buying.
A:
Negative