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Thanks for the quick and helpful responses everyone, though Kyle and Rachel, I think it being CONTENTdm is what it comes down to. I should have mentioned that I am trying to extract these images from CONTENTdm. So I am still a little confused, though, about how the .cpd file in CONTENTdm works. In the export I am noticing that the `cdmfile` variously points to .cpd files in some records and .jpg files in other records. It does not seem to correspond to whether there is a front and back to the image or not (I think they all have front and back in same object though I may be wrong). I am relatively green with CONTENTdm, so this is a learning moment for me. If this is the case, how do I go about extracting the image file information from the .cpd files? If they are XML, I am not sure how to read their contents as opening up with a text file or browser shows 'invalid file'. Thanks, d -----Original Message----- From: Code for Libraries [mailto:[log in to unmask]] On Behalf Of Kyle Banerjee Sent: Tuesday, March 11, 2014 11:42 AM To: [log in to unmask] Subject: Re: [CODE4LIB] .cpd file format head scratcher Just out of curiosity, are these files in a DAM or did you get them elsewhere? The reason I ask is that you appear to have a bunch of pharmaceutical cards in a CONTENTdm system at http://nyam.contentdm.oclc.org/cdm/search/collection/p4129coll16 If you're trying to extract the image files from CDM, the cpd file is an XML file defining a compound object with object odentifiers, filenames, and descriptions.You can iterate through all the images separately kyle On Tue, Mar 11, 2014 at 8:15 AM, Andrew Gordon <[log in to unmask]> wrote: > Hey All, > > For a set of digitized pharmaceutical cards, I am coming up against an > image file format that seems to be locked in time. It's supposedly a > Compressed PhotoDefiner (?) lossless (.cpd) file ( > http://www.photodefiner.com/home/). Though when I try to load up the > software, I can't get it to take on any of our windows machines > (running 8 and 7). Don't have a mac on hand so don't know if that > works or not, currently. > > In my experience, though, I've always been able to find some rogue > third party file converter (or imagemagick) to be helpful in these > scenarios but this format is just not something that appears to have been accounted for. > Additionally, it's one of those file formats that seem to only pop > randomly generated answer sites with questionable downloads in a > google search, such as > http://www.solvusoft.com/en/file-extensions/file-extension-cpd/ > > Just wanted to see if anyone has come across this format and whether > there might be any tools to convert it. > > Thanks, > Drew > > > > ________________________________________ > Andrew Gordon, MSI > Systems Librarian > Center for the History of Medicine and Public Health New York Academy > of Medicine > 1216 Fifth Avenue > New York, NY, 10029 > 212.822.7324 > http://nyamcenterforhistory.org/ >