April 2012 deposits at ICPSR

Chart?  Chart.

# of files	# of deposits	File format
177190	6	application/dicom
49	23	application/msword
157	6	application/octet-stream
184	36	application/pdf
8	4	application/vnd.ms-excel
1	1	application/x-7z-compressed
1717	7	application/x-dosexec
6	2	application/x-empty
13	4	application/x-sas
21	15	application/x-spss
3	3	application/x-stata
7	7	application/x-zip
6	2	image/gif
157948	13	image/jpeg
208	6	image/png
104	6	image/x-ms-bmp
6	6	message/rfc8220117bit
5	2	multipart/appledouble
26	7	text/html
2	2	text/plain; charset=unknown
371	35	text/plain; charset=us-ascii
104	6	text/plain; charset=utf-8
59	12	text/rtf
416	6	text/xml

Things look pretty light in terms of the usual formats, but a handful of big, big deposits stick out.

DICOM - Digital Imaging and Communications in Medicine - is a format used for medical imaging, and we received well over 150k such files last month plus an equally large batch in the more prosaic JPEG format.  I'm not sure how we'll be curating and delivering this content.....

Related to this same set of deposits is a large number of Windows executable files (EXE and DLL file extensions) which will also be an interesting challenge for delivery.