where is the best place to but these dvd's at?

I have been looking for a used set with no success.

Thanks Barry

 Thank you. I will look them up and order them

Gun Dog Supply also has them...

They may be hard to find resale because they are quite valuable, I can see people wanting to hold onto them.

You can buy new at http://www.perfectionkennel.com/video_series.htm

However, the DVDs do not cover retrieves/force fetch.