Your brother does not have to upgrade to an HDMI receiver but if he would like the conveniences of it, then that is what I suggest he do.
If he wants to keep his current receiver, he can take advantage of TrueHD and DTS-MA by connecting multichannel analog cables from his BD player(that has multichannel outs) to the multichannel imputs on his TX-SR800. The decoding of those signals take place in the BD player instead of the receiver.
Bill
If he wants to keep his current receiver, he can take advantage of TrueHD and DTS-MA by connecting multichannel analog cables from his BD player(that has multichannel outs) to the multichannel imputs on his TX-SR800. The decoding of those signals take place in the BD player instead of the receiver.
Bill