I've just measured the temp of the disk drive cases at 43C which near enough agrees with Vital Signs (44C). So I guess there's nothing wrong with the sensor in the player. I've just been looking at the fans on the RS website (I don't think you have RS outside the UK) for something suitable to fit inside the player. I've found one that's only 12.8mm thick which should do the job. I'll order one on Monday when I get into work. I might even rig up a little circuit so that it only comes on above a certain temperature. If Hugo's reading this maybe he can let me know the best place to get 12V from. The fan will take about 50ma. I'd feel much happier with cooler drives.