i dont think there would be any difference for a 1m cable but i think there will b some difference when the cable is more than 10m.....i read this in some review saying that there is a correction algorithm in the video processor converting digital to analog where additional bits will be inserted to replace the missing bits during transmission through a series of calculation

previously i have a 12m supra HDMI cable ....the signal lost was so bad that my projector couldnt detect the signal but it works on another projector ...the cable stated that for a 15m supra cable, the maximum transmission capable is only 1080i but it doesnt support 1080p....i have tried several cables(all above 10m) and some of the cables will produce some sparkling pixel.....i was told that this was due to signal loses of the cable ......

in terms of picture quality, the difference between cable is minimal and most of the time u couldnt even tell the difference between each cable.....