For the CSC exam, i purchased DVD for the CMC/CSC exam as well as CD that had 5 tests (not very helpful). I found it harder than CMC (I think i answered the questions as if what I would do in my hospital or what my surgeons would want.. rather than what is standard of practice). Biggest thing is to know your surgeries, know your patho.. (Ex;what does AI/AS patient's hemodynamics look like, what meds would you start) etc.