I was recently sold some 'GJ Home Cinema' cables (component 3RCA - 3RCA) by a local TV shop. The manager told me that 2 of the 3 connections were video and the other 1 was audio, but that I could still use all 3 for video. I suspect that the 2 video connections are 75 ohms and the 1 audio connection is 50ohms. Can I assume that this would be the cause of ghosting on DVD picture? I have a Hitachi 42PD300E plasma TV, and a Yamaha DVD-S540 dvd player.