Idon't know about electronic copies, but I did ask the instructors about older versions of books. I was advised via email that the last version of calculate with confidence and the 1st version of the videos would be fine (and they are both much cheaper on Amazon). Also, we are allowed to use the last version of the fundamentals book, but it would require more effort as we will have to search for the info rather than just go off of the page numbers given - I got the impression they were advising against it. Most current versions of Davis's drug guide and most current version of Nursing Diagnosis were recommended. *** I was given this information in response to an email I sent and I am in no way recommending it - I just thought I would share as an FYI.