OK, on E-Bay, I bought a cable with the following description: THUNDER CABLE 6' DIGITAL COAX VIDEO CABLE NEW The description goes on to say that this digital coax cable can be used for either audio or video. What I got looks to be what I call a standard RCA video cable, not a digital coax. The package says: THUNDER VIDEO CABLE RCA CONNECTORS I'm requesting a refund, but the seller says that an RCA video cable can in fact pass a digital audio signal. This doesn't sound right to me, but the jack size is the same. Should I get the refund?????