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I was thinking of getting a universal player (DVD-V,DVD-A,SACD,CD,MP3). But I keep hearing about the laser diodes breaking after few years of frequent CD playing (because the single diodes are designed for DVD´s). Ever heard of such?
Follow Ups:
I'm by no means a laser expert, but I fail to see how a laser head will be physically affected in any way by one form of disk over another, i.e., dvd vs. cd.One issue that does get some discussion is the affect DVD-optimized laser wavelength on redbook cd playback quality. Early DVD players (from waaay back in 1999!) often had discrete lasers for DVD and for CD formats, but feature this has pretty much disappeared.
They say that the diode has to focus on wavelength different (CD)from what it was designed for (DVD), and therefore breaking.
Its an optical system; whats going to break it? The only thing I could think of is some strange heat effect from the light beam; but the energy level is so low that its almost impossible to concieve.
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