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(4) Others (unusual events experienced to date)
*
Problem occurs with double-layer discs although no problem occurs with single-layer DVD.
(Error occurs, or search becomes unstable and takes longer.)
Crosstalk might occur from tracking to focus system.
When FE was observed during search (skip, etc.), it was found that a wave resembling TE
with an amplitude of 200mVp-p was riding on FE.
Mechanical unit was replaced.
*
Error frequently occurred in the outer part of discs although no error occurred
in the inner part.
Mechanical unit was replaced because tilt seemed to be defective.
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