You won't get brain-surgery learning in a medical forum, usually this is for people already having the needed background.
The problem with DVD is that much of the information cannot be disclosed to public. Nevertheless, an amateur would be very fast confused after reading the first 100 pages of the documentation, because of the jargon used and the needed background.
So, get acquanted with the tools you have been indicated to, and live happy: one doesn't need to know the equations leading to the impact of detonations upon the valves' seats in order to drive a car.
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Born in the USB (not USA)
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