We have just received a copy of the recording of Rinpoche speaking at the OKC in Brussels (thanks to Francois). You can listen to it in the player below by just pressing the play button. The recording is just under 40 minutes.
The first few minutes are missing and you will need to turn up the volume to maximum using the volume bars on the left hand side, as the recording is quite low. Using headphones should make it easier to hear.