Hi Louise,
This is an area I am also investigating as I reduce storage space both
on NTFS drives and within our EDRM. I have previously used NXpowerLite
in another organisation with great success - there will be similar
packages available. My main interest, like yours, is the legal
admissibility aspect of compressed images. I wait with interest to see
if anyone has any clear guidance on the matter.
Many Regards
Geoff
Geoff Gray MBE
Corporate Information & Knowledge Manager
E-Business
3rd Floor
Maurice Bishop House
17 Reading Lane
London E8 1HH
Tel: 0208 356 2683
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-----Original Message-----
From: The Information and Records Management Society mailing list
[mailto:[log in to unmask]] On Behalf Of Louise Pichel
Sent: 25 October 2012 09:28
To: [log in to unmask]
Subject: Legal admissibility of compressed images in EDRMS
Dear all,
We are currently investigating long term storage of colour images in our
EDRMS and the potential storage implications.
Storing the raw TIFF files for the required 7 year retention period has
been rejected due to the large amount of storage space required, and we
have been pointed towards both the LZW compression algorithm and/or
storage as PNG files instead.
I would be very grateful for any comments/suggestions on both the use of
LZW compression and PNG's for long term storage in terms of legal
admissibility. I have looked at the Code of Practice for Legal
Admissibility but it doesn't go into much detail about compression
specifically.
I would be more than happy to summarise responses to the list.
Many thanks.
Louise
Assistant Archivist
Library and Museum of Freemasonry
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