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In Reply to: Idea to test if painting back side and edges of CD has an effect on data posted by La Grenouille on February 9, 2001 at 15:07:05:
Gren,
Well, not me, exactly. I haven't read all through this thread, so I hope I'm not reiterating somebodys post.
John Atkinson at Stereophile had this idea in about 1990, and either he (he's fairly technically adept) or a hired person implemeted it.
The fascinating thing when they ran the test was how few errors there were. As I remember, they could get two different readings; number of read errors, and number of errors that could not be corrected (re-read?) and had to be interpolated. They were getting on the order of ten or so read errors per disc, none of which were uncorrectable. Remember, now, this was in the (relatively) early days of RedBook audio; and at this stage most people were assuming that the sonic problems of CD's (which were considerable at that time) were due to data errors. This experiment, and maybe a couple similar ones performed in hi-end industry labs, caused a real epiphany in the audiophile tech community; and germinated the research efforts that led to the discovery of the effects of jitter, power supply interactions, etc.You could look it up (Thank yew, Casey).
Poinz
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Follow Ups
- Been there, done that. - Poindexter 15:06:45 02/10/01 (1)
- Re: Been there, done that. - Steve Eddy 15:24:57 02/10/01 (0)
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