the 1.0 vs 1.3 rating for cables only has to do with rated bandwidth. you will be just fine, unless you are talking about 50 ft lengths, then id see if i could get a 1.3 cable. 3-6 ft? dont worry about it, dont look back.
I just purchased a new blu-ray player and a new AV receiver that both have HDMI 1.3 connectivity. My HDTV has HDMI connectivity which I belive is HDMI 1.0.
Will I be missing anything if I use the 1.3 HDMI able to connect the blu-ray and the receiver and then a 1.0 HDMI to connect the receiver to the TV?
Hope this makes sense. I'm new to this.