Well, now comes the hardest part. Waiting for the hardware to arrive.
I have encoded a Dragon's Lair play-through and a Star Wars Ep4 that was ripped from an old Cinemax recording.
It was easier than I thought it would be with rbairos' video tutorials. Although I wish I had watched them all the way through first before starting.
My Star Wars recording had the typical Cinemax Feature presentation promo at the beginning and I wanted to trim that part out and get right to the 20th Century Fox fanfare and didn't realize that I could have done it with TouchDesigner. So I did it the simplest way I could find with a quick google which was to use the Windows Photo App crazy enough, but I had to totally re-encode it after the trim. It would have been easier to do it in TD. Oh well, live and learn.
Thanks again Rob for this amazing little project. I will probably buy a second cart after some time has passed and other people have got their shot at acquiring one.
----Edit
I had one more spare SD card. I am gonna do TRON also.