Hi guys. I'm looking to get some HDMI cables for my Plasma TV. I visited monoprice, and I've noticed that for HDMI lengths up to 3 feet, the cables are simply rated as 1.3a. However, for HDMI cables above 3 feet, Monoprice have these listed as High Speed HDMI 1.3a Category 2 Certified. Is there a difference between these cables? Or is it just marketing for cables above 3 feet?