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

[Q]: You aren't saving any being this adapter. I purchased this for a 12" G4 Powerbook. The power it supplies goes on and off constantly. This can't be good for the computer. It certainly doesn't charge it. Don't waste your money on this Macally adapter. Try to find an original Apple adapter if you can.
[A]: Negative

[Q]: I haven't been able to watch this much because the DVD won't play in my normal (otherwise functioning) DVD player. It will play on my computer's DVD player, but without sound. The DVD will play fine on my laptop, but that's not a screen that's very conducive to practicing in front of. The DVD does play on my friend's DVD player for some reason. Also, I bought volumes 1 and 2 and both are so short, it seems obvious that they could have put all of the lessons on one DVD. I guess they knew they could make more money by making us buy both.
[A]: Negative

[Q]: This is a live cd(2002), with all of their great hits from all the albums combined. Hard driving rock and roll, like always the great bands come from Canada. Over the years Moxy has not given up, they keep pressing on. This has their all time master piece" Sail on, Sail away". Plus 16 other great songs. Very strong singing from Brian and backed up by the best. Do yourself a great justice and get this cd.
[A]:
Positive