Time to put the Thomson DHD4000 PVR Hard Disk into the Silent Box:

L-R i) The Disk in the Silent Box, the circuit board has to be facing the heat plane which goes on top ii) Adding the Gel Sheet iii) Enclosed in the Silent Box.

The PVR is now back in situ on top of the video:

The idea is that the heatplane dissipates the heat onto the chassis of the PVR, if it were installed in a PC it would use the PC case for this.