JHOVE issues and error messages

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JHOVE errors found as part of migration of image-based materials to Ex Libris' Rosetta by the State Library of New South Wales (SLNSW). Assistance in analysing some of these errors was provided by Digital Preservation staff at the National Library of New Zealand.

h3. Metadata Extraction from TIF files

The following errors have been experienced with image-based materials:
** *Error analysis:* This error occurred on a TIF file. File should contain 20 bytes however there were only 11 (and so it did not meet the DateTimeOriginal standard for the field, as per the TIFF specification. The TIFF spec states: "When the field is left blank, it is treated as unknown.").
* Technical MD Extract:Fail - Error/s returned during metadata extraction (Tag 34665 out of sequence)
** *Error analysis:* This error occurred on a TIF file. Issue hasn't yet been fully analysed, however info can be found at TIFF specification: [http://www.awaresystems.be/imaging/tiff/tifftags/exififd.html]