Hopefully someone out there has heard the same tthing I heard. I am a guitarist not a drummer, but I have never heard anything like this before. It is on the LZ DVD, disc #2, select interviews and promos, then select promos. The'fillersong' here is The Song Remains the Same. Bonzo is incredible on this! I have never heard him play this fast before! No overdubbing has been done on this version. Two questions for you drummers, could this be double bass drums? The footage is to grainy to tell? Second question, when and where was this concert and is there a soundboard recording of it? Thanks, I have always been intrigued by just this very small snippit of perfection, it's a shame it wasn't of better quality so as to be used in the DVD in its entirety.?