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Would leaving disks infront of a stereo speaker damage the disks in any way?
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No.
Commercial CDs have a pattern of troughs and ridges physically pressed into them. CDs recorded on your PC use a laser beam to burn the pattern into the surface of the disc. Neither technology relies on any electromagnetic material, so the magnetic field around a stereo speaker can't damage the CD. (It's only things like audio cassettes and VHS videos, which use electromagnetic recording and playback technology, which can be damaged by magnetic fields).
To learn about what can damage CDs and DVDs, see here:
http://www.clir.org/PUBS/reports/pub121/sec4.h tml
Chris
Commercial CDs have a pattern of troughs and ridges physically pressed into them. CDs recorded on your PC use a laser beam to burn the pattern into the surface of the disc. Neither technology relies on any electromagnetic material, so the magnetic field around a stereo speaker can't damage the CD. (It's only things like audio cassettes and VHS videos, which use electromagnetic recording and playback technology, which can be damaged by magnetic fields).
To learn about what can damage CDs and DVDs, see here:
http://www.clir.org/PUBS/reports/pub121/sec4.h tml
Chris
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