lmth

I am creating video tutorials for sale purposes (sell to earn profit) like cbt nuggets etc.
I have created lectures from scartch in my own style and presentation. I used differnet authors books, articles, etc. to understad such concepts.
I have created presentation style, graphics etc. from scratch.
My question is..
I am using Gnome based linux os (ubuntu or fedora) and I am using softwares like Xvidcap, Avidemux, etc. to record such lectures.
Mostly these softwares are registered under GNU, GPL v1 or 2 etc.

If I record my lectures using these softwares and platform and produce them in .avi format.. That material will be my ownership completely?