Just got a panasonic DMR-es15 DVD recorder and want to connect it and my samsung NTL box to an AV amp (denon avr 1507) by their digital optical outputs. Maybe a daft question, but are the connectors standard? The manual for the recorder asks me to "check the terminal shape of the connected equipment" then doesn't specify what connection it is! It says PCM bitstream on the socket on the back of the recorder if that helps. I haven't bought the amp yet so cant check its connectors... Any help gladly appreciated!