You are correct that the only way to get 7.1 TrueHD and DTS-HD is with a player that supports 7.1 analog output. You may also want to check into the availability of 7.1 mixes (early discs were all being mixed as 5.1 because that's what the sound engineers use for theatrical soundtracks) and whether the player can apply processing like Pro Logic IIx to get 7.1 from those 5.1 sources. The limited access to 7.1 output has driven numerous early adopters to actually use splitters to send the surround channels to both side and rear surround inputs on their receiver and processor's 7.1 analog inputs. I can see no reason that analog output would be limited to 5.1 from 7.1 sources, but if the player doesn't support matrix decoding with 5.1 sources then you're still stuck.