It's not so much the laser as the handling that CDs typically go through
over the years which if done correctly can have a favorable effect on
the bits. Inserting and removing CDs from their packaging gradually 
reduces the shininess of the surface. Some shiny is OK, the laser needs
that to detect 1s vs 0s. But if the surface is too shiny, the 1s will
have kind a halo, and this can make them appear to have a more
zero-like shape as they are read by the tiny camera in the CD
transport. This is why brand new CDs often sound significantly louder
than ones that have been on the shelf for a long time. If you are
ripping new CDs, just putting htem in the CD player for a few hours is
not going to do much to them. In fact the sustained spinning can cause
dilation of the data due to centrifugal force - you really don't want
that as it will reduce the playback pitch in the same way that an
excessively capacitive s/pdif cable can. Instead it is recommended to
simulate the effects of normal day-to-day handling, and this can easily
be done with medium grit sandpaper and an orbital sander (NOT a belt or
drum type, those are only for tapes). Press gently and scrub in a
circular pattern until the glare of the surface has been reduced to a
normal level. Then it should rip accurately. Good luck!


-- 
seanadams
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