Thanks much, Richard.
Lots of new and relevant information in the document to digest and
follow-up on--=A0 especially the affordable optical disc testing
options which might help signal when its time to duplicate one's
discs.=A0 I'm thinking there might be services where one can send in
some sample discs every year to get tested on the top-notch testers.
So, today, the British Library Sound Archive would prefer to receive
new collections of sound recordings on numerous mirrored drives?=A0 Rob
D.
=A0 =3D =3D =3D =3D
At 9:39 AM +0100 6/27/10, Richard Ranft wrote:
>I recommend you refer to the free online version of
><http://www.iasa-web.org/tc04/audio-preservation>http://www.iasa-web.org/t=
c04/audio-preservation
>"IASA-TC04, 2nd Edition:
>Guidelines on the Production and Preservation of Digital Audio Objects,
>March 2009" which (chapter 6.1.2 and chapter 8) advises against optical
>discs for long-term storage. Instead (chapter 6.3) it advocates keeping
>multiple copies of each digital file spread across hard disc drives (HDD)
>with regular file integrity checks. HDD are cheap and individually
>unreliable yet a system of mirrored drives is very reliable if managed
>properly. This solution is widely adopted in professional archives includi=
ng
>the one where I work, the British Library sound archive.
>Richard Ranft, London
>
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