This video doesn't talk about what you should buy, it just talks about what there is.
0:00 Introduction
1:29 2 Video Heads
4:17 4 Video Heads
5:56 3 Video Heads
7:33 5 Video Heads
8:41 4DA Video Heads (Dual Azimuth)
10:17 Hi-Fi Heads
12:11 6 Video Heads
13:42 Flying Erase Head
17:16 How to remove an auto head-cleaner
17:26 Credits