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Date:      Wed, 13 Jul 2005 01:15:42 -0700
From:      Garrett Cooper <youshi10@u.washington.edu>
To:        freebsd-questions@freebsd.org
Subject:   Optical drive laser misalign guidance
Message-ID:  <42D4CDAE.9020503@u.washington.edu>

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Not sure if this is the best location to ask, but I have to see anyhow...

Just wondering if anyone has had any verifiable experience with 
misaligned lasers in optical drives, and I was curious how they fixed 
the issue if they got that far.

I'm asking since I have 2 optical drives-both DVD+/-RW and both have 
apparently failed to the point where they will either barely read 
CD-R/Ws and not read DVDs at all (Liteon SOHW-1633S), or not DVD media 
and CD media is read slowly (Sony DRU-500A). The other option I 
considered it being is powering issues, but-as requested before-I was 
wondering if anyone had similar issues with misaligned lasers, what the 
symptoms were exactly, and how they possibly remedied the problem(s). I 
would rather not toss these drives in a dumpster since they were rather 
expensive and still work somewhat.

I have updated the firmware to the latest and greatest as per Lite-on 
and Sony's website, but it hasn't affected the overall operation of the 
drives.

Many thanks!

-Garrett



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