Quality Assurance

Testing a Permanent Digital Storage Archive | Digital Preservation Matters

Testing a Permanent Digital Storage Archive – Part 1. Chris Erickson. September 9, 2015.
For about the past seven years I have been testing the M-Disc permanent digital storage media. The M-Disc is designed to use inert, permanent materials, so that digital data written to the discs are permanent.

EpubCheck 4.0 | Mad File Format Science

EPUB is the favorite format for e-books (ignoring Amazon, which like to be incompatible so it can lock users in). EpubCheck is the open-source industry standard for validating EPUB files. If you’re an author creating your own e-book files, you should run them against EpubCheck before releasing them. It’ll make hosting sites happier, since they’ll probably run it themselves and will like your book better if it passes. A book that passes EpubCheck will also give you fewer headaches with readers complaining it doesn’t work on their reader.

Format Migrations at Harvard Library: An NDSR Project Update | The Signal

As has been famously outlined by the Library of Congress on their website on sustainability factors for digital formats, digital material is just as susceptible to obsolescence as analog formats. Within digital preservation there are a number of strategies that can be employed in order to protect your data including refreshing, emulation or migration, to name a few. As the National Digital Stewardship Resident at Harvard Library, I am responsible for developing a format migration framework which can be continuously adapted for migration projects at Harvard.

Upgrading Image Thumbnails… Or How to Fill a Large Display Without Your Content Team Quitting | The Signal

Preservation is usually about maintaining as much information as possible for the future but access requires us to balance factors like image quality against file size and design requirements. These decisions often require revisiting as technology improves and what previously seemed like a reasonable compromise now feels constricting.

AV Artifact Atlas: By the People, For the People | The Signal: Digital Preservation

The Federal Agencies Digitization Guidelines Initiative is its community-based ethos. We work collaboratively across federal agencies on shared problems and strive to share our results so that everyone can benefit. We’ve had a number of strong successes including the BWF MetaEdit tool, which has been downloaded from SourceForge over 10,000 times. In FADGI, we’re committed to making our products and processes as open as possible and we’re always pleased to talk with other like-minded folks such as Hannah Frost and Jenny Brice from the AV Artifact Atlas project.

We Want You Just the Way You Are: The What, Why and When of Fixity | The Signal

Fixity, the property of a digital file or object being fixed or unchanged, is a cornerstone of digital preservation. Fixity information, from simple file counts or file size values to more precise checksums and cryptographic hashes, is data used to verify whether an object has been altered or degraded.

QCTools: Open Source Toolset to Bring Quality Control for Video within Reach | The Signal

An interview with archivists and software developers Dave Rice and Devon Landes about the latest release version of the QCTools, an open source software toolset to facilitate accurate and efficient assessment of media integrity throughout the archival digitization process.
http://blogs.loc.gov/digitalpreservation/2014/09/qctools-open-source-too...

Can I Get a Sample of That? Digital File Format Samples and Test Sets | The Signal

If you’ve ever been to a warehouse store on a weekend afternoon, you’ve experienced the power of the sample. In the retail world, samples are an important tool to influence potential new customers who don’t want to invest in an unknown entity. I certainly didn’t start the day with lobster dip on my shopping list but it was in my cart after I picked up and enjoyed a bite-sized taste.

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