I am running a Logitech Squeezebox Touch to a NAD T747 via coaxial (or TOSLink, same problem), and during silence, my receiver loses lock. And so, when the music starts playing again, the opening moments are lost as the processor figures out what it's being sent and then re-locks. I can determine this by watching the status indicator on the receiver.
The problem doesn't seem to affect my DVD player over coaxial S/PDIF, so I assume it's sending some stable clock signal that the Squeezebox isn't.
Is it possible to buy a relatively simple S/PDIF repeater that somehow embeds a clock signal so that digital silence doesn't cause dropouts? I plan to listen to everything at 44.1kHz (maybe 48kHz for internet radio) for the foreseeable future. Budget won't be much, as you can see I'm using budget-ish gear.