Quote:
Originally posted by Matlock
Yeah, they try to send a precise potential just to be sure, but in the end they check if it's above or below a limit because for sure it won't be exactly .2 and .6
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Sounds like your describing voltage trigger levels, In that casem there would be a level for each logical state. I agree, it won't be exactly .2 or .6. But if the signal crosses, say .45 for example, then it registers as .6. .35 would trigger a .2 reading.
Just checking if it's above or below a single voltage level isn't a very good system. What if it's at that voltage level? What do you do then?
Quote:
Originally posted by Matlock
Sure, most of the time the signal is clear, but as I said many things can happen that blur the distincition. That's when errors appear
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But what I'm saying is that, when the cable can't deliver a signal that distinguishes from "1" or "0", then you're not going to read anything because that's all your trying to read, 1's and 0's.
Quote:
Originally posted by Matlock
Well, I would think that the path inside error-correction chips, and othes,r before getting to the DAC is relatively long, but I admit I don't know the exact numbers
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Either do I, but the difference in the player is that going through all of those chips and what not, the singal is rejuvinated by each chip. In fact, one way to fight singal attenuation is to run it through a powered chip because the powered chip will spit it back out on the others side at full voltage.
Quote:
Originally posted by Matlock
Sorry, it's you that is mixing stuff. 
The gold I was talking about is on the disc itself, therefore it does relate to light.
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OK, I didn't realize you weren't talking about the players or the cables, but the actual media.
Quote:
Originally posted by Matlock
It's alright, all done in a friendly and constructive manner!
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Yes, I appreciate it.