Does anyone know of a website that offers DVD's or tapes of old tournaments, mainly looking for past Ryder Cups and Majors but would be interested in other memorable tournaments as well.

USGA Championships here:

https://usgapubs.usga.org/store2/category.a...DVDs&Page=1

They also have a bunch of old highlights on VIDEO, dating back to the early 60s. Pretty sure they have all the years since, but on video and you need to call.

Ryder Cup:
http://www.amazon.com/s/ref=nb_ss?url=sear...words=ryder+cup

and now that you are at Amazon, run searches for the Masters, PGA, Open Championship etc.