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Checksum is a calculated value that is used to determine the integrity of data. The sender of the data calculates checksum value by taking the sum of the binary data transmitted.
LOTS about geospatial data preservation
Planning so that your files will survive for a long time is tricky in general, and video is one of its trickiest areas. When even the designers of HTML5 can’t agree on a video format, what ar…
PDF is a useful format. It’s an ISO standard. There’s reliable free software for reading it. It’s widely used and difficult to modify by accident. It can serve as a container for …
How they're making the filesystem resilient will sound REALLY FAMILIAR...
WARC is a tool for archiving websites that captures details of the implementation environment as well as the code. Apparently wget has a WARC mode, as well.
(NOTE: This is an updated article from our digitalpreservation.gov website originally written by Mike Ashenfelder.) As we discussed in an earlier post, the landscape is changing for the better in terms of the appearance of open source tools to support digital preservation and access. NDIIPP has contributed by developing tools to transfer large quantities of […]
In the shaky and often promiscuous business of the Web, where companies fold and merge at astonishing speed, you can’t always trust that Web sites will take long-term care of your digital treasures.
The Digital Formats Web site provides information about digital content formats. Content categories covered include still images, moving images (video), textual documents, recorded sound (audio), web archives, datasets, geospatial resources, and generic digital formats intended as wrappers or packages for any type of digital content.
Hilarious stop-motion Lego video about Alice's struggles to retrieve (retired) Bob's data, and how the reBIND project might help.
MIXED (Migration to Intermediate XML for Electronic Data) is a service that can convert files with tabular data (spreadsheets and databases) to supplier independent XML for long term preservation. This is the so called Standard Data Format for Preservation (SDFP).
Maryland Institute for Technology in the Humanities
Excellent, comprehensive digital-preservation policy document.
Download Digital Preservation Software Platform for free. NO LONGER MAINTAINED. NO LONGER MAINTAINED, NO LONGER SUPPORTED Digital Preservation Software Platform (DPSP) consists of a number of open source products such as Xena and Digital Preservation Recorder. This installs and configures the complete platform for preserving digital records - just install and use!