Montejay,
The SACD (of any kind) is a DVD-based media. A 650nM wave-length laser is used to read that media, and at a power that is 0.2-0.3mW. In order to burn a CD-R or DVD-R, the laser power is increased at least 10 times.
Simple math will be that, if the laser can heat the disc surface to 200C to burn the film at 2mW, the temperature while reading will be 10 times less or 20C. At this temperature there is no way for the laser to make any change on the disc surface.
Furthermore, even if the laser was capable of some sort of interaction with the disc surface and can somehow change the pits shape, this will not result in improved sound but in severe playback errors.
But let's imagine for a moment that the laser miraculously makes the pit edges smoother with many hours of repeat playback. Even with this scenario, the laser cannot re-master your SHM SACDs from dull/bass heavy sounding to amazing crystal-clear vinyl sound. :-)
Hope this helps!
Best,
Alex Peychev
The SACD (of any kind) is a DVD-based media. A 650nM wave-length laser is used to read that media, and at a power that is 0.2-0.3mW. In order to burn a CD-R or DVD-R, the laser power is increased at least 10 times.
Simple math will be that, if the laser can heat the disc surface to 200C to burn the film at 2mW, the temperature while reading will be 10 times less or 20C. At this temperature there is no way for the laser to make any change on the disc surface.
Furthermore, even if the laser was capable of some sort of interaction with the disc surface and can somehow change the pits shape, this will not result in improved sound but in severe playback errors.
But let's imagine for a moment that the laser miraculously makes the pit edges smoother with many hours of repeat playback. Even with this scenario, the laser cannot re-master your SHM SACDs from dull/bass heavy sounding to amazing crystal-clear vinyl sound. :-)
Hope this helps!
Best,
Alex Peychev