Last year, I read chapters of book "Neurology Boards" prior to taking (and easily passing) my 10-yr re-certification test. I only had 24 hrs to study, and it was my only study guide. The re-certification test is very clinical. The software has been marketed to the re-certification crowd as they (we) are presumed to have more disposable income. I have received at least 3 emails advertising it, but I did not buy it. The number of views of this thread without claiming one owner of the software should suggest that there are only few copies around.