The AVR65 automatically senses the type of digital surround encoding in use and adjusts to accommodate it. One caveat about the digital processing is the 48kHz limitation on the digital input. If your DVD player can output sampling rates up to 96kHz (the DVD-video maximum), this output will not be usable with the AVR65. However, the AVR65 does offer six-channel analog inputs to accept decoded digital signals from DVD-video or the coming 192kHz, 24-bit DVD-audio forma. ---amazon.com review Now I need a DD 5.1 receiver and my dad is offering this one up so I decided to do a little research on it first. Now can anybody explain this stuff so I can figure out if this receiver is any good or I should buy a new one?