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You may be able to get some of it back by putting a bit of vasolene un the 
underside of the lifted sections- just a bit.  You can then line up a groove 
and, if it becomes too discontinuous, you can slide it over a hair.  Record 
what you are playing on a hard drive and paln to do considerable editing.

Steve Smolian

----- Original Message ----- 
From: "David Lennick" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Friday, February 24, 2006 10:25 AM
Subject: Re: [ARSCLIST] Question re DuoDisc records


>A lot of these very thin aluminum home recording discs are flaking, and not 
>just
> DuoDisc. RecorDisc (orange label), Presto orange label (too bad, those 
> were made
> by a professional company but they're just as prone) and others. As for 
> DuoDisc
> being "quiet", any I've ever seen over the last 50 years have been so 
> warped and
> bumpy, noise level was generally way down on the list of 
> attributes..getting
> them to track was more of a problem, and this was in the 50s when they 
> couldn't
> have been more than a few years old and you wonder how new ones were ever 
> flat
> enough to be recorded on in the first place.
>
> There have been attempts made to re-attach flaked portions, but be aware 
> that if
> the disc is flaking, the surface material has already shrunk and the 
> grooves
> will never line up completely.
>
> dl
>
> David Lewis wrote:
>
>> Yes - I am familiar with DuoDiscs. These are cheaply made, 
>> instantaneous-cut
>> discs. The first "homemades" I ever owned were a pair of these given to 
>> me
>> by a family friend thirty years ago. What the correspondent calls "vinyl" 
>> is
>> actually the lacquer coating on the outside of the aluminum center, and 
>> if
>> it is already peeling there is little hope for it.
>>
>> This is a pity - Duodiscs have fairly quiet surfaces for homemades, but 
>> it
>> appears most of the ones I see nowadays are on their way out - it appears 
>> 90
>> per cent of them are flaking off. And these always seemed so durable, 
>> unlike
>> steel-base Carr-O-Tones and others which rust and usually prove 
>> unplayable
>> anyway. As there are no established standards for handling these records, 
>> it
>> is hard to know what to do to preserve them. The standards may well 
>> arrive
>> too late for most DuoDiscs.
>>
>> My advice - record the non-flaked-off portions at a very slow speed 2 or 
>> 3
>> times, speed up the results and edit what's left together. You may get
>> different grooves to play on different passes.
>>
>> David N. Lewis
>> Assistant Classical Editor, All Music Guide
>>
>> "Contemporary composers, and at least a considerable number of them, 
>> explain
>> what system they used, in what way they arrived at something. I do not do
>> that. I think that the matter of the way by which one arrived at 
>> something
>> is, for the listeners, unimportant. What matters is the final result, 
>> that
>> is the work itself." -Grazyna Bacewicz, 1964
>>
>> -----Original Message-----
>> From: Association for Recorded Sound Discussion List
>> [mailto:[log in to unmask]] On Behalf Of Joel Ackerman
>> Sent: Thursday, February 23, 2006 11:47 PM
>> To: [log in to unmask]
>> Subject: [ARSCLIST] Question re DuoDisc records
>>
>> Am asked the following question:
>>
>> Are you familiar with those "DuoDisc" type records?  They have an 
>> aluminum
>> center (substrate) and a thin coat of vinyl (I think) on top of the
>> aluminum.  I believe they are records people made home recordings on.
>> Anyway I have two (or three) of them and the vinyl is peeling off the
>> aluminum.  I was wondering if you knew anything about, perhaps, repairing
>> the peel?
>>
>> Looking at photos, it appears that the vinyl is coming apart - cracking 
>> and
>> heading towards eventual peeling off,.
>>
>> Suggestions welcome.
>>
>> Joel Ackerman
>
>
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