Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Defective Disc...Where's Quality Control?

Normally these guitar play along dvds have good material and instruction. My rating is on the quality control of the product and not the material. I received my dvd last week and when I opened the package I noticed on back of the dvd that they printed the snapshot pictures of the lessons upside down. I laughed it off until....I went to watch the dvd. This dvd gives you 4 different options to watch and learn. The first 4 songs I checked out, 2 of those options were upside down like in the pic! This does not aid in learning the song!!!!. I didn't bother to try and watch the other 4. I can't believe this dvd made it out of quality control. If I hear that they fixed the problem, I'll re-purchase in the future. Thanks to Amazon for the great customer support.