oh sorry, haven't seen your question before.
It was at Schützenfest in Iserlohn, Germany. There's also a video on youtube, unfortunately only the first rounds (they sounded awful!) BEFORE the pipers managed to play the same speed.
Since I don't play the pipes for long, heres the first pic showing me piping :-) It was taken last weekend in Bramsche near Osnabruck. Think that Oli actually wanted to take a photo of my car and I was only standing next to it by chance :wink: there's also been another Piper I heard, but he left rig...