Sorry for the delayed response. Yes, if a repair device is not functioning
properly, it can damage items. As Jim states, if the pressure exerted on
the disc is excessive, or applied unevenly, damage can occur. However, if
the mechanical calibration of the machine is only slightly off, the results
are usually successful. I have had discs which "finish" with light circular
"tracks" still on the play surface, but the damage has been remedied and
they play normally. This should not happen routinely. The circular tracks
may also occur due to worn pads on the disc rotator. Over the course of two
years, no disc I have repaired has been damaged by the machine.
Art & Music Dept.
Peoria Public Library
Peoria, IL 61602
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