Bought this from Amazon in august. I am having problem with sound. This first started with my direct tv hookup, using coponent for video and optical cable for sound through the DVR input. It worked at first but all of a sudden the sound was gone. I switched it to the CD-R input and the sound works. I switched it back to DVR input and still no sound. No big deal, so I switched back to the CD-R input. That was a couple months ago. Now, I'm having problems with my TV/SAT hdmi input. I am using this input for my WD media player. There is video but no sound. So, I decided to test the cable by switching it to the BLU-RAY hdmi input and the sound works. Also tested it on the DVD hdmi input and that works also. So, does anyone have any other suggestions to find out what the issue is before I contact amazon?