drngr said:
BlackMagic has several devices that capture uncompressed multi-channel audio; the second sentence notes the cheapest one I know of.
Is uncompressed really what you want? The options for capturing compressed AC3 and DTS bitstreams are the same as before, as far as I know.
My apologies. I should have said....uhh....un-recompressed (is that a word?) video and multi-channel audio. :)