Took the plunge today and bought this highly rated processor. But not had enough time to play any software yet! It came with the Prologic II software upgrade and the extra two surround outputs. I take it I can play DTS matrix and descrite with these, without anymore upgrades? The operating software is 3.3 but is it worth going for 3.4? If there's anything else you think I should know about this piece of kit please let me know. Cheers.