Ripped a couple of DVD's to my HD. ( Direct copy no compression) Ran the DVD's on the 717 and the Film on the HTPC with a 5 second delay so I could swap sources and compare scenes. 717 was connected via digital coax. 1 metre length high quality cable. HTPC was connected via 10 metre cheapo phono cable. Both into a Yammy A1 Could I hear a difference? Nope. Neither could my mate. No we're not deaf. Just an interesting observation that's all.