The quality wasn't degraded, my heart was just pumping waiting for it to conk out, luckily I had two other cameras on the guy speaking so it was covered.
I actually think the problems was due to the fact that I hadn't cleared the card before I started, then when I was filming I would stop the camera for a second or two then delete the old files. It seamed ok for a while so kept doing this then the the buffer bars started coming up and then finally the temp light came on.
I reckon I was just working the camera too hard and it was trying to write to the card and delete at the same time. A pretty stupid thing to do.
