I have a gen 5,1 MBP with the mini-display port and no thunderbolt. I discovered that you cannot use the mini-display to HDMI adapter. You will get video but absolutely no audio. If you plug into the HDMI input of a surround receiver you will NOT see the device show up under Audio/MIDI Setup. OK, no surprise since this is in fact just a DVI port. Is there a firewire to HDMI adapter solution for this? My express34 slot is currently being used for a Wintec SSD (OS/apps) so that obvious option is not desired. And yes I use my internal data drive and my optical drive regularily. So... firewire > HDMI?