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Old 3rd November 2011, 06:30 PM   #1
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Default cd question

simple as that

why player A while playing a CD is spinning at 100 rpm while player B spins at 4 times higher ?

been working with a denon cdrw 1500 and watching the player while play mode that runs on a dead slow speed ( other than that works properly )

in the same machine the CDRW unit ( recorder unit ) plays the same CD disk at almost 10 times the speed .

Any help om this ?

Thanks
sakis
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Old 3rd November 2011, 06:53 PM   #2
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The speed depends on which track you are playing. The first tracks (closest to the center of the disk) require higher RPM.
Other than that, I have no idea.
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Old 3rd November 2011, 07:04 PM   #3
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no...testing was made always on the first song of the cd
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Old 3rd November 2011, 07:33 PM   #4
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The first cut should be running at about 450 RPM.
Why are you concerned if the machines are playing the CDs properly?
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Old 3rd November 2011, 07:36 PM   #5
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how about learning something ?
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Old 3rd November 2011, 08:04 PM   #6
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Sorry if my response was rude. That was not my intent.
Some CDRW recorders are designed to run at one speed ... the highest speed at which they can record data.
If this is the case, the recorder is probably reading and re-reading the data at a higher rate than necessary for playback.
As the playback electronics request more data, the drive will pass the data.
Not a major problem ... only a problem with the initial system design.
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Old 3rd November 2011, 08:44 PM   #7
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no probs .... i didnt took your answer as rude ... in between though i checked a few other players and the same CD ( at the same song ) runs in quite higher speed than the denon which of course is no problem for me ...i only wanted to know why ...

\Thanks for your time Frank ...

Kind regards
sakis
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