Posted by Franc Zabkar on 10/31/27 11:59

On Wed, 20 Sep 2006 13:22:44 GMT, spam@uce.gov (Citizen Bob) put
finger to keyboard and composed:

>What is a good, safe laser lens cleaner for a standard DVDR?

I use a cotton bud and plain water. However, you may want to consider
the following advice.

http://www.yamaha.com/yec/faq/faqdetail.html?CNTID=205033&CTID=5009170

"Does Yamaha recommend using a laser cleaning disc in any Yamaha
optical players ?

You should never physically clean the laser lens of any Yamaha optical
based player because this type of cleaning can damage or scratch the
actual lens, causing constant skipping and even mis-tracking of the
CD/LD or DVD player."

See also http://www.repairfaq.org/sam/cdfaq.htm#cdcdlcd

The author writes:

"I generally don't consider CD lens cleaning discs to be of much value
for preventive maintenance since they may just move the crud around.
However, for pure non-greasy dust (no tobacco smoke and no cooking
grease), they may not hurt and could even do a good enough job to put
off a proper cleaning for a while longer.

However, it's also possible they will ruin the lens. Consider that the
worst thing to do to a precision optical surface is to wipe it with a
dry cloth as this is likely to scratch the surface as it rubs the dust
over it. To the lens, a speck of dust is like a boulder. Once the lens
is scratched, replacement of the entire optical pickup is the only
remedy. And, since there are absolutely no sorts of standards for
these things, it is possible for a really poorly designed cleaning
disc to damage the lens even if the dust itself is non-abrasive. In
addition, if the cleaning disc doesn't look like a CD to the optical
pickup or disc-in sensor, the lens it may not even spin. So, the
drawer closes, the drawer opens, and NOTHING has been accomplished!
(But at least no damage will be done.)

As if this isn't enough, NEVER put one into a high-X CDROM (DVD player
or DVDROM drive). The high speed rotation may cause the cleaning disc
and/or player/drive to self destruct. And, don't try a cleaning disc
on an automotive CD player that sucks in the disk - it will get
stuck."

- Franc Zabkar
--
Please remove one 'i' from my address when replying by email.

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