Jon,
While I don't think RIAA would like this, I would make a gold archive
CD-R of the original and store it in a separate location along with
copies of the paper.
I'll answer your questions below.
At 04:52 PM 2007-10-26, Jon Noring wrote:
>1) What are the degradation mechanisms of typical commercial audio CDs
> and how can they be mitigated?
There is research by NIST (I believe) and others -- I don't have the
references handy, but there are major reports on this and I think
IASA TC04 has some of this in it.
>2) Since most commercial audio CDs use standard "generic" jewel boxes,
> our thoughts are for each such CD to remove the contents (the disc
> and all paper inserts) from the jewel box (which will be recycled),
> and place the contents into a sleeve or bag (like a Zip-Loc?).
I don't think this is a good idea. The "generic" polycarbonate? jewel
case is part of the CD system and keeps the disk safer than anything
you proposed. There are polypropylene? archival jewel box
replacements available from Stil Designs in Quebec that was the
subject of a long discussion on this list back in February. I would
not use anything that came in contact with the optical surface OR the
print surface of the CD. There are just too many risks.
If you wish to avoid any degradation products from the paper possibly
damaging the CD then that can be stored separately using archival
paper storage techniques -- a well-known science.
> For a typical commercial audio CD, the contents will reduce down
> to about 1/8" thick. Not only will this increase storage capacity,
> but might allow us to more easily mitigate long-term degradation
> as brought up in #1 above.
I think anything other than suspending the CD in air would be bad.
Saving the space would be good and you might investigate the thinline
jewel cases, but then you'd still have to do something with the tray card.
>3) Barcodes. I notice that the vast majority of commercial audio CD
> releases I've seen going back a number of years all have bar codes.
> I assume these barcodes could be of great advantage for cataloging
> purposes?
Yes and you could also grab the "Gracenote" (ex CDDB) record for the
commercial CD if you wished.
Hope this helps a bit.
Cheers,
Richard
Richard L. Hess email: [log in to unmask]
Aurora, Ontario, Canada (905) 713 6733 1-877-TAPE-FIX
Detailed contact information: http://www.richardhess.com/tape/contact.htm
Quality tape transfers -- even from hard-to-play tapes.
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