While working on OAI-PMH on atom to harvest the metadata to our discovery tool. I found one serious problem about the type of textual document on atom it show image but originally it is textual document (pdf).
when I harvest the metadata to our discovery tool it takes type of document as image.
when I saw the record structure in xml format on atom it show image type below is the reference, I choose ISAD standard.
when I access the below url, there the General material designation : Textual record and Level of description : File.
when I export that record in xml Dublin core, here the type is showing image.
<dc:date>Apr. 10, 1972</dc:date>
<dc:format>1 folder of textual records (53 pages)</dc:format>