Genealogy: File formats and preservation

Genealogy: File formats and preservationFile formats are the KEY to preservation. One of the goals of digital preservation is to prevent a loss of access to files due to file format obsolescence.

If you are using a file format migration strategy for preservation, then you will be refreshing the digital files over time to keep the content stored in formats that are readable by the current technology. Continue reading

Genealogy: Which image file format should I use?

Digital photography is all about lighting and locationThe most common image file formats—the most important for general purposes today—are TIF, JPG, GIF, and PNG. These are not the only choices, but they are good and reasonable choices.

Best File Types for These General Purposes:

Photographic Images

  • Properties: Continuous tones, 24-bit color or 8-bit gray, no text, few lines and edges. Continue reading

Genealogy: Long-term maintenance of digital image files

Long-term maintenance of digital image filesDigital preservation and long-term maintenance of your digital files is a very serious matter.  With technology changing so fast, there are no absolutes about the exact formula for digitally preserving our family heritage—which will be a combination of artifacts that include text, data, and images, audio and video.  However, there are some best practices of archivists that have responsibility for preserving our national and cultural heritage that we can learn from.
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