•Object
validity determined by JHOVE
–A small, but non trivial number of objects are not
valid
•6,323 (1.4%) of all TIFF objects
• 937 (4%) of all XML objects
• 101 (>1%) of all
JPEG objects
•TIFFs make up 40% of all DRS objects; XML, 2%; and JPEG,
35%
•Internal metadata extracted by JHOVE and testing for consistency with DRS metadata
–Significant numbers of inconsistencies
–Some systemic
errors