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

Q: I was very excited to buy this scanner and was pleased with its size and weight. However, if you have a Vista operating system, like I do, IT WILL NOT WORK! The company told me that they stopped selling this product over a year ago and there are no driver updates available for this product. If you have an older computer and an older operating system this product might work for you. But as for me it was a waste of money!

A: Negative
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Q: My husband and I are expecting our first baby any day now. We opted to get a childbirth video versus attending a class. After doing some research and getting reccomendations from friends, I decided to purchase this video. While the information on the DVD is helpful and each segment is clear and easy to understand, the instructor presented it in such a way that made extremely painful to watch.The instructor continuously makes annoying jokes, mocks pregnant women and their partners, using the most unfunny and unflattering impersonations imaginable. Watching this woman's attempt stand-up routine was so uncomfortable that we often found ourselves fast forwarding through a lot of it. Please believe that neither me or my husband laughed during this DVD. Not once.I wish we had just gone to childbirth class.

A: Negative
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Q: I waited a while before I reviewed so that I could give a GOOD review and this works amazing, trust me you need to get used to it but you WILL and please buy according to size chart it does stretch after sometime but you need to SUCK IT IN when you first put it in my lower belly pudge is almost gone!

A:
Positive
****