Hi all

I have a few MP4s which MediaInfo says that it contains 6 channel AAC audio.

The problem is that my amp only receives a stereo signal from these files.

But when I play a MKV file my amp screen says DTS or Dolby Digital.

Is there any codec that will convert the AAC audio to an Amp understandable format on the fly (which I believe is AC3) instead of having to convert the files audio.

I use Media Center on Windows 7 64bit
- Intel i3-2100 3.1ghz processor
- Asus P8H61-M Pro motherboard
- 1 x 4gb Ram
- 550w PSU
- Geforce 210 video card 512mb

I use the motherboards optical S/Pdif connector to a Pioneer VSX-915 amp.

Thanks for any help and hope the 'weather bomb' doesn't treat you guys too harshly.