Mary, I do not regret buying the "Under the Horse" dvds.  They are full of invaluable information, and the anatomy part is incredibly important for understanding how to trim.  I'm sure you won't regret it.

However you can also rent Under the Horse, and tonnes of other hoof trimming dvds from Pete Ramey and others, online at:

https://www.giddyupflix.com/search.php

I prefer to own them so I can go back to them over and over again.  :)

--
Kirsten Rasmussen