I bought my TR-47 discs on Ebay. That was long before I found this place and knew it could be acquired for free. Others are likely in that boat.
Excuse my noobiness but what is TR-47?
(I hope I’m not getting off topic.)
Info on the TR47 set can be found here mate - http://originaltrilogy.com/topic/id/1364
Basically it’s a laserdisc to dvd transfer of the OT - as was the norm back in 2003/04 on here…
IIRC it was one of the first quality sets out around at that time - along with the Dr Gonzo, and the later EditDroid, IsoMix, Moth3r, Farsight sets etc…
a list of the major projects from back then can be found here (in amongst some more modern releases):-
http://originaltrilogy.com/topic/Project-Index-Star-Wars-Preservation-and-Other-Projects/id/2450