R
Richy
- Jan 1, 1970
- 0
What's the best way to clean CDs? I heard rubbing alcohol and a cotton
cloth or t-shirt.
cloth or t-shirt.
What's the best way to clean CDs? I heard rubbing alcohol and a cotton
cloth or t-shirt.
What's the best way to clean CDs? I heard rubbing alcohol and a cotton
cloth or t-shirt.
Richy said:What's the best way to clean CDs? I heard rubbing alcohol and a cotton
cloth or t-shirt.
Richy said:What's the best way to clean CDs? I heard rubbing alcohol and a cotton
cloth or t-shirt.
Richy said:What's the best way to clean CDs? I heard rubbing alcohol and a cotton
cloth or t-shirt.
Arfa Daily said:Not quite cleaning, but dealing with scratches ...
If you have a scratched or scuffed disc, try metal polish of the ' wadding '
type. Rub vigourously around the scratched area ( there's no need in this
case to worry about doing it radially rather than in circular motions, but
that said, I agree with what everyone else has commented about not CLEANING
with tangential movements ). You only need to work the wadding around the
scuff / scratch for 30 seconds or so, then let the polish residue dry to a
white haze for another 30 seconds or so. Now polish off with a lint free
cloth, and you will be amazed that the damage has apparently completely
disappeared.
I don't think that it does actually go, rather that the metal polish leaves
behind an oily protection layer, which ' fills ' the scratch or scuff in,
and has a refractive index very similar to that of the plastic.
Never-the-less, the effect is to completely recover a disc with poor
playability due to damage, in all but the most severe cases. Also works for
computer CD ROMs that the machine has dificulty with for the same reason.
Arfa
Tim Schwartz said:Hello all,
First, I agree with most of the posting here, no circular motions,
gentle cleaner, lint free cloth.
If the disc is really important, find a better local video rental place
that has a real disc resurfacing machine. The one in my area has a unit
that uses up to 5 grit levels in a wetted condition and does amazing
things with damaged discs. It will even remove the swirl mark left by
the home units that cause as many problems as they solve. The reason I
don't suggest that you buy one of these professional machines is that
they cost around $2500. They charge $3 per disc.
The system is also sold with a specialized PC 'disc analyzer' that
scans the disc, and tells how many bad or damaged sectors there are, and
where they are on the disc. The analyzer is around an additional
$1500, so I wouldn't suggest buying one of those either.
Regards,
Tim Schwartz
Bristol Electronics
What's the best way to clean CDs? I heard rubbing alcohol and a cotton
cloth or t-shirt.
Ken G. said:It does not matter what direction you wipe the disk . I dont care what
someone said or the myths that go with it .
There is no such thing as a ``lint free`` cloth or lint free anything .
Just use some sort of soap , Windex is always handy .
We have one of those pro cd cleaning machines at work it sits right
behind my workbench . It has a water tank on top that sprays a constant
stream of water on everything . You can start with different grit wheels
depending on how bad the disk is .
Normal every day scratched disks will come out like new with only the
last step which is a foam pad with goop on it . This machne really does
a good job .
I have fixed some totaly un-playable disks in it .
Arfa said:Where do you get the idea that the direction of wipe is a myth ? The
data layer on a CD or DVD is a spiral behind a plastic guard layer.
If you put a scratch radially across a vinyl record, it will click
every time the stylus passes over it. If you put a scratch along the
groove, it will disturb the output for as far around the groove as
the scratch goes.
Likewise, if you put a scratch across the protective layer a CD or
DVD, it will be largely ignored because of the way the data is
encoded by interleaving and spreading it around. However, there is a
limit to the amount of data you can corrupt before the hardware and
software error correction systems fall over, and you lose output
which is correctly usable by the servo and music / video data DSPs.
This becomes even more important on DVDs which have much less margin
for error because of the much smaller data pits, and the speed at
which the data is read off the disc, and on any player where the
laser is even slightly below spec.
Whilst it may be true that your fancy machine spins the disc and
applies several grades of sandpaper or whatever, it is a professional
machine, and does this in a controlled and designed manner. This is
why it gets away with circular cleaning. Joe User, on the other hand,
is a ham fisted biological machine, who can't tell the difference
between carefully cleaning fingerprints off a disc, and doing the
disc more damage by scrubbing around it with a caked snotrag. I
therefore stand by the contention that the best way for an
inexperienced average user to clean a disc is by rubbing gently
across it, with the aid of a little dishwashing liquid to help remove
greasy marks.
As far as there being no such thing as lint free cloth, there are many
manufacturers who would disagree with you, and advertise products as
exactly that. Whilst no cloth can be declared perfectly lint free,
synthetics such as polypropylene are considered to be near enough to
meet the definition. Next time you clean your glasses, try using a
cotton dish drying towel instead of the polyprop cloth that came with
them, then tell us again that that a lint free cloth doesn't exist.
Arfa
Likewise, if you put a scratch across the protective layer a CD or DVD, it
will be largely ignored because of the way the data is encoded by
interleaving and spreading it around.