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Having replaced the top aluminium cover of a Denon's DVD/CD player with a custom-cut (but less tightly-fitting) acrylic sheet, I have since had to clean the laser lens far more frequently as the sound otherwise gets muddy and sometimes video stops tracking. For this purpose I have always used Isopropyl alcohol on a Q-Tip and mistakenly assumed that nothing else would do a better job as the cleaning agent.Recently I substituted fluid from a 14-year-old bottle of 'Memorex OptiClean Cleaning Solution' (now no longer in production) to the Q-Tip in cleaning the laser lens out of nothing more than curiosity. To my surprise the resulting increase in dynamics for both music and movie soundtracks is much stronger than had ever been achieved from cleaning the laser lens with Isopropyl alcohol.
So my purpose in starting this thread is to invite those using Isopropyl alcohol to try substituting an optical cleaner instead and report your findings here.
Edits: 06/26/16Follow Ups:
Thanks! for sharing- All.
I have been doing it for a number of years on a half dozen different units. I use a Q-tip also. I put on a very light coat of a product a friend came up with called CD Clarity. It is a liquid the consistency of water. I then wipe it off with a clean Q-tip
Hi DG-2
Like Musetap wrote...Nice to see you posting here....
which I've had for about 10 years.
Weak on my part.
Nice to see you posting here.
THANKS!
"Once this was all Black Plasma and Imagination" -Michael McClure
If it ain't broke.......
ET
There are old illustrations of the surface gap for optical pickups, and then objects like a particle of tobacco smoke, a human hair etc. The gap is TINY compared to the object.. Some too small to really see.
So, for me, I brush off EVERY CD or DVD just before use. Both sides..
I have a pile of brushes I bought for this.
The easiest to find are women's cosmetic blush brushes. They can be very soft, plush, and well made.
I own about four of them laying around all my optical player boxes.
I use one EVERY single time I place the CD or DVD in the player. No exceptions.
I see dust getting in the player no matter what you do to the disc. But I guess compared to whatever wanders in through the vents, slot, etc. isn't as much as putting a dusty CD in there can...
Manny,
Have extended applying 'Memorex OptiClean Cleaning Solution' from the laser lens to the metal around it, the inside of aluminum cover of the drive unit not far above it and to the label side of CDs and DVDs (before attaching the Marigo Audio Ultimate Mat) for its anti-static propoerties. That does further boost sound dynamics and video color a bit. Not sure this answers your question as have not used my straight optical cleaner for lack of reference to anti-static properties.
Dry Ginger
Alcohol can leave a haze, not good for the job. An optics cleaner that is plastic safe is the way to go.
ET
If it's isopropyl/rubbing alcohol, that contains oils which may be the cause of the haze. Pure 90% or higher shouldn't leave any residue from the alcohol.
There is no beer in food, but there is food in beer.
What I found in cleaning many lasers is that I first use a dry tool to remove as much dirt and dust as possible. Whatever liquid is used can mix with dirt and dust and cause haze. The haze is easily visible and as long as you repeat that step until no haze or residue is present youre good.
ET
What I found in cleaning many lasers is that I first use a dry tool to remove as much dirt and dust as possible. Whatever liquid is used can mix with dirt and dust and cause haze. The haze is easily visible and as long as you repeat that step until no haze or residue is present youre good.
ET
What I found in cleaning many lasers is that I first use a dry tool to remove as much dirt and dust as possible. Whatever liquid is used can mix with dirt and dust and cause haze. The hazevis easily visible and as long as you repeat that step until no hazecor residue is present youre good.
ET
Dick,
Since I was using 99% pure Isopropyl alcohol, perhaps the large sonic improvement was in fact attributable to the anti-static ingredient of the Memorex OptiClean left on the laser lens.
There's no question that fast-rotating discs do generate substantial dynamics-degrading static. Have long used the Marigo Audio Ultima Signature Mat with each CD/DVD to block much of their static buildup during play. The mat also much reduces CD micro-vibration and I attach the mat to each disc with removable double-sided 3M Scotch tape in order to stop micro-vibration from air flowing in between mat and disc.
By contrast the detail/ clarity improvement from demagnetizing/ smoothing CD magnetic fields with the Walker Talisman has never seemed comparably satisfying to me although I generally go through the full routine of two-stage cleaning, Marigo Mat attachment, Talismaning front and back before each play.
Dry Ginger
Thanks for your post and reply. Good to see you back.
ET
Musetap, old guy 42 and Awe-d-o-file,
Many thanks for the welcome back.
Dry Ginger
I've owned the same CD player for ten years or so and I've never cleaned the laser lens. No tracking problems or degradation to the sound quality that I can detect. Guess my hearing is deteriorating at the same rate as dirt accumulation on the laser.
There is no beer in food, but there is food in beer.
The haze could be glue residue that was dissolved from the cotton tip. Johnson's swabs are the only ones I use. They have a barb, not glue, to secure the cotton to the stick.
Dark energy? Ridiculous!
We live in an electric universe.
Years ago I used ROR (Residual Oil Remover) Optics Cleaner for cleaning a CD player laser lens. It worked very well for the purpose and was the best cleaner I ever used for fine camera lenses.
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