I'm doing the CPLs. I couldn't get a grip on Climatology from the notes, so I borrowed this MET CD for a couple of hours from another student on the brush-up course. I only watched the climatology part of the CD but I thought it was very good. Sorted me out, and suddently the subject became more logical to me. If the rest of the CD is as good as the part I used, then it has to be a "best buy". I passed the MET exam the following week. I wish I had bought the CD before starting the MET part of the course and I wish there were similar CDs for the other subjects.