The content was captured from a High-Definition television broadcast.

An open-source MPEG-4 video codec. Its primary "useful feature" is maintaining reasonable video quality while keeping file sizes small enough to fit a standard episode onto older storage media like CDs or play on legacy hardware.

The filename suggests a specific digital distribution format common in the early 2010s (the season originally aired in 2011):

A unique feature of the show is Vera's "master class" in detecting; she uses a whiteboard to gather her team and meticulously analyze every detail of the crime scene and evidence.