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digital-preservation / pronom-research-week

A persistent repository for PRONOM Research Week activities
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Drawing Interchange File Formats fmt/76 and fmt/532 have identical internal signatures #21

Open jackdos opened 3 years ago

jackdos commented 3 years ago

In the latest pronom release, the signatures for both fmt/76 and fmt/532 have been amended, however they now have identical values for the BOF byte sequences:

30(0D0A|0A|0D)53454354494F4E(0D0A|0A|0D)202032(0D0A|0A|0D)484541444552(0D0A|0A|0D)39(0D0A|0A|0D)2441434144564552(0D0A|0A|0D)202031(0D0A|0A|0D)4143 31303237 (0D0A|0A|0D)30(0D0A|0A|0D)454E44534543(0D0A|0A|0D)

The byte sequence descriptions are: fmt/76 - Header section with $ACADVER group code (AC1012) fmt/532 - Header section with $ACADVER group code ASCII: AC1027

The highlighted section in the byte sequence above is the ascii code for 1027, so I'm guess that the fmt/76 sequence is the incorrect one.

@thorsted Your name seems to be on the release notes for this, so maybe you can have a look and confirm or correct me :-)

Dclipsham commented 3 years ago

Thanks Jack, Richard raised on the PRONOM repo - https://github.com/digital-preservation/pronom/issues/16 - data entry error is being fixed in next release.