Shattering the eyeglass: Using Kaitai Structs to dissect the eyeglass’ contents

by @beet_keeper

In my post from 2012: Genesis of a File Format, I created a new file format – the Eyeglass file format. The format provides a mechanism to persist information about a patient’s eye health following a checkup at an opticians. Today in 2023 we can use the format to understand how to make use of Kaitai Structs for understanding file formats.

Given the disclaimer that I am not actually an optician and that the format is purely illustrative, let’s look at the eyeglass again below.

Continue reading “Shattering the eyeglass: Using Kaitai Structs to dissect the eyeglass’ contents”…

#code #coding #digipres #digitalLiteracy #digitalPreservation #fileFormat #fileFormatAnalysis #fileFormats #kaitai #pronom #yyyy

What information is in a file format identification report?

by @beet_keeper

In early 2022, I was finally able to get around to writing a paper that I had been thinking about for the better part of a decade. The paper, “Fractal in Detail: What Information Is in a File Format Identification Report?” was published in the Code4Lib journal Issue 53.

The paper takes a deep dive into the fractal contents of file format identification reports exported from tools like Siegfried and DROID.

Let’s take a brief look the article and its contents below.

Continue reading “What information is in a file format identification report?”…

#code4lib #code4libJournal #digipres #digitalPreservation #droid #fileFormatAnalysis #fileFormatIdentification #fileFormats #filedriller #formatIdentification #freud #linting #metadata #preservationMetadata #pronom #puid #puids #siegfried #staticAnalysis #technicalMetadata