Problem: 
Q: Is this product review positive? Title: MUST HAVE THIS TO USE PRESSURE CANNER with glass cooktop Review: I was ready to throw away my Presto pressure canner. I had to constantly every few minutes adjust the heat to keep the pressure at 11 pounds. Now....I put this on, walk away. Presto does NOT recommend this, HOWEVER, it is impossible to keep the pressure right without it. I cannot believe that this does not come with the canner. It should be required. Presto is dead wrong. YOU MUST HAVE THIS REGULATOR if you are using a glass cooktop stove. Presto has the only canner recommended for glass cooktops, but they dropped the ball by not including this regulator. Now....I love my canner. Answer:
Answer: Yes
Problem: 
Q: Is this product review positive? Title: Crap !!! Review: I would not recommend anyone even considering to buy this book. It is a big piece of crap, which doesnt contain any technical info, just plain business say. Answer:
Answer: No
Problem: 
Q: Is this product review positive? Title: CDs poorly remastered Review: It would have been helpful in deciding to make this purchase to have known these were remastered old recordins from 78s or 331/2 RPM. The seller delivered quickly and there is no problem with that and it may be possible the seller was unaware that these were remastered poorly. Answer:
Answer: