Hello Leeds1972,
I bought the CD ROMS and did as you were doing. I found it tremendously time consuming and spoke to a number of training organisations who told me to stop using them. I have been told that they are way over-the-top in terms of content and contain a lot of material outside of the exam syllabus.
I bought Jeremy Pratts books, signed up for the CATS on-line course and bought a PPL confuser. Far more sensible.
Oh and I sold the CDROMS!!!!!