Preventing LaserRot with a spray on product?

[T]

Archived from groups: alt.video.laserdisc (More info?)

Would it be possible to seal the surface of a laserdisk enough using a
type of wipe on or spray on type coating?

Perhaps this has already been discussed but it seems a viable answer to
archiving rare disks.


TBerk

 

[Guest]

Archived from groups: alt.video.laserdisc (More info?)

A french guy, not Gizmo's aka Julien aka Generikz, had found the way..
but he did it the first days he got the Ld ! and that is the priority..
he sealed with kind of ink glue in some brush paintings the extremities
which coasted

> Would it be possible to seal the surface of a laserdisk enough using a
> type of wipe on or spray on type coating?
>
> Perhaps this has already been discussed but it seems a viable answer to
> archiving rare disks.
>
>
> TBerk

 

[Guest]

Archived from groups: alt.video.laserdisc (More info?)

On Sun, 3 Apr 2005 16:49:25 +0200, ddarko <ddarko@voila.fr> wrote:
>A french guy, not Gizmo's aka Julien aka Generikz, had found the way..
>but he did it the first days he got the Ld ! and that is the priority..
>he sealed with kind of ink glue in some brush paintings the extremities
>which coasted

It's superstitious behavior, like flushing catfood down the toilet to
prevent rats. Must have worked, no rats!

If the LD is going to rot, then oxygen has already gotten in and sealing it
won't help.

 

[Guest]

Archived from groups: alt.video.laserdisc (More info?)

T > Would it be possible to seal the surface of a laserdisk
> enough using a type of wipe on or spray on type coating?

Extremely doubtful, and it could easily cause new problems.

Assuming that the potential rot is due to O2 penetration,
sealing the edge might make more sense.

Risks:
* Screwing up the focus servo by altering the thickness
and/or index of refraction of the optical layering.
* Unbalancing the disc unless the coating is applied
extremely evenly.
* Inducing rot or merely crazing the optical surface
via whatever solvent/carrier the coating uses.
* Having coating fly off during rotation.

Lots of aftermarket care products have been released for
LDs and CDs. If anyone would fall for a protectant, it
would already have been on the market. After the ArmorAll
fiasco, apparently no one cared to try.

Backup your LDs to DVD, and store the LDs in a vacuum
chamber.

--
Regards, Bob Niland mailto:name@ispname.tld
http/www.access-one.com/rjn email4rjn AT yahoo DOT com
NOT speaking for any employer, client or Internet Service Provider.

 

[Guest]

Archived from groups: alt.video.laserdisc (More info?)

T wrote:

>
>
> Would it be possible to seal the surface of a laserdisk enough using a
> type of wipe on or spray on type coating?
>
> Perhaps this has already been discussed but it seems a viable answer to
> archiving rare disks.
>
>
> TBerk

I have a few discs I bought years ago [early 80's] that have laserot. They
still play ok, albeit with an appreciable amount of dropout, but what I've
done is archived them to DVD using a DVD recorder. I don't think sealing
the surface is going to make any difference, it's the edges AFAIK that need
sealing to prevent the oxygen penetrating the disc.

Rich