DVD suggestions for guitar tech/repair instruction?

I am going to invest some money in a good set of instructional DVD's for guitar tech/repair. I know the basics, but really want to get into the nitty gritty of the craft, just short of becoming a Luthier.

I've been a fan of Dan Erlewine for 20+ years and was thinking of investing in his set. Any other suggestions?

His was what I was going to suggest

why fool around

Did you know 45 years ago he played with Iggy Stooge? High School Band!

Besides Dan....I would give a small donation to Frank Ford's site... Frets.com you can spend hours there, and learn from a Master at his craft.