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General Asylum General audio topics that don't fit into specific categories. |
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General Asylum General audio topics that don't fit into specific categories. |
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In Reply to: Here is one... posted by LoWang on April 14, 2007 at 00:52:38:
My understanding is as follows. Perhaps someone closer to the actual business can comment.1- After the mastering of a project, "parts" are made. These parts are then shipped to the plants that actually make the CDs. There are masters and mothers. I believe the mothers are discs in which the pits stick OUT, as these are used to stamp out the copies you buy.
2- The Mothers eventually wear out. Thus, a later pressing of the same CD using the same mother might not be as good.
Somewhere I saw microphotos of CD pits and you could see immediately that it's not as cut and dried as you might expect.
And maybe this is why:
There are 9 different lengths of "pits" and "lands."
You can see at least several of those lengths here.
Here's another resource worthy of your time.
Wouldn't it be interesting to compare the audio on the same (Title) CD from various pressing plants around the world? Some audio magazine, website or club should take this on.
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Follow Ups
- Re: Variable Quality in the SAME CDs but different copies - bobwood 14:12:49 04/14/07 (0)
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