Instruct: Classify an Amazon review into positive or negative sentiment.
Query: One of the greatest concerts on video EVER - BUT.....

I have had the VHS version of this concert for years and I've noticed that on the DVD version, the sound has been altered. Some of Angus's lead licks were slightly edited and at the end of "Dirty Deeds Done Dirt Cheap", Angus holds his hand up in the air and screams into the microphone. Well, the video of him doing that is present on the DVD, but the audio of his screaming was edited out! I was a bit disappointed with that. Also, on "Hell Ain't A Bad Place To Be", certain sections have "backward masking" in it. If you listen real close, there is definitely a voice talking. It's unmistakeable. If anyone out there can figure out how to isolate the voice and figure out what it says, please let me know. Probably something like, "your mother sews socks that smell", or something. Did you know that if you play the Mr. Ed themesong backwards, you can hear a voice say, "s-s-s-s-s-s-s-satan?" HA HA HA!