You select some or all of the books, click on the convert icon and select a format to convert to. At the end of the batch you get a pop-up telling you that Calibre was unable to convert "X" books due to DRM. There is a details button that when clicked will give you the list of books that did not convert. I do a screen print of the titles so I can organize them later.
Last edited by Cdesja5; 07-11-2012 at 08:02 PM.