Hi,I'm looking for a way to use 7.1 on my PS3. The problem is that I have no device able to receive hdmi audio signal because my hdmi cable is already connected to my projector which reads only video signal.My audio receiver is a Dolby Digital sound processor (that means I probably cannot read any DTS sound btw) and it has no hdmi input anymore.So I have to use an optical cable (toslink toslink) as only choice but it's limited to 5.1. Is there any cable on earth able to send a 7.1 sound signal from a PS3 other than with a hdmi cable ?