john petrucci "rock discipline" dvd

i was wondering what your guys' opinions were on the rock discipline dvd by john petrucci? what does it teach you? does you teach you different techniques and stuff like that? anything else?

I think it's good... It does show you exercises to improve alternate picking technique and speed, and has a section on sweep picking as well.

Really, it helps you develop techniques you already have - doesn't go very in depth on the techniques themselves.

Worth the money in my opinion - also try looking at ' Speed Mechanics' by Troy Stetina....