QUOTE (mantis @ Aug 27 2007, 10:39 PM)

So if I understand this correct, the apple cable at $20 and 6' long is the same as the 6' long monoprice cable for $4.79? Why would cables for less have 2 different quality cables? I know the big box stores really jackup the prices on cables, but is a $4.79 cable as good as the ones they are charging $90 for? Maybe I am asking the same question multiple times, but I just do not want to buy something that is not going to show the HD image as well. Thanks for the input!
If you want another reason for the difference, besides name branding, I have seen cables that differ just by the thickness of the internal wires (22 AWG vs. 24 AWG vs. 26 AWG). The thicker the internal wire (smaller number), the less chance for signal loss. However, there are specifications in the HDMI standard that dictate the minimum power output for any HDMI source. No store would sell cables that are too thin to properly deliver the signal over the specified cable length (based on the power output rating defined in the HDMI standard). So, any cable you buy from anywhere will perform just fine if the device creating the image provides the correct level of power according to the specification.
Another reason, for Monster cables, is special injection something and special wire materials, or something or other. Basically, they claim the have less signal loss based on their cable's construction. That is not significant in this instance, because, as jonjandran mentioned, the HDMI data is a digital signal.
If you are unaware of what that means, that means that the information comes across the cables as a voltage of either 0 volts (for a 0) and 3.3 volts (for a 1). I don't know the actual voltage value for an HDMI '1' (could be 5 volts), but the idea is the same. Now, the devices reading the data will allow some tolerance in these values; i.e. 0.5 volts will still be recognized as a '0' and 2.8 volts will still be recognized as a '1'. So, buying the thicker more expensive wire will reduce signal noise/loss and keep the '1' signals closer to 3.3 volts than the thinner cables might (especially over longer distances). However, the thinner ones don't horribly degrade the signal's voltage level, so you may get a voltage level of 3.2 or 3.15 volts. Still within the tolerance for any digital signal.
So, you are fine with the less expensive cables for an HDMI video signal.