bought my Sennheiser HD-280 Pro in early 2003 and they've been great cans since. I am not an audiophile nor headphone fanatic, I just bought them from the PX on base because I wanted a decent pair of closed headphones and the only ones that they had were the HD-280 Pro for $100 (no tax at P<rolling eyes>. Today at the airport, I was listening to my headphones connected to my MP3 player and it worked fine. I handed the cans to my friend, who put them on backwards, ie left side on his right ear, and he asked me why one side has no sound and I think WTF? I messed with it for a while at the airport to no avail. After I got home from the flight, I took the thing apart and found both drivers to be working - they both measure 85 ohms. However, I find that there is no continuity between the terminals on the left side and the right side on the wires that carry the signal from the left to the right. I pulled the right side earpiece apart and find that the wire somehow got pinched and severed in the hole in where the right earpiece is hinged. I called Sennheiser to see if I could get a piece of wire, but they said that I could only get the wire if I replaced eht entire headband. He said that I might be able to find the wire if I could find something called Litz Wire. I have some difficulty finding this because it doesn't seem like a common item. I also do not know what the gauge of the wire is. Anyone have some suggestions on how to repair my headphones. I am not ready to throw out my headphones for a seemingly simple fix.