I'm so glad to read such a response, RedFive. It means a lot after what was easily more than 150 combined hours between the two of us of auditioning and comparing sources, planning the set's structure, reading and researching dates, locations, lineages, restoring the tracks, and then designing the artwork. We started Caught On Tape back in July 2010, so it's incredibly gratifying to see it taking its first steps into the world. This is my first fan project, so I'm new to this feeling. :-)
There are several "core" Beatles bootlegs a collector should have. My all-time favorite and most-listened-to is the near-complete collection of BBC performances currently circulating in a great set called "Unsurpassed Broadcasts". The Beatles performed live on the BBC 52 times between 1962 and 1965. At 11 discs, Unsurpassed Broadcasts offers all but a few of those performances in full. They are so much fun to listen to, great performances, a lot of cover songs they never released on an album, and in between a wealth of funny and fascinating interviews and comedy bits with The Beatles. Listening to them is like time traveling (if you time travel just to listen to the radio, that is!). For anyone who doubts that The Beatles could play live, they need look no further than their BBC performances. Most of the officially released tracks on Live at the BBC actually come from the same bootleg sources, but EMI used noise reduction, EQ, and hard limiting to make them sound "better" and ended up ruining them. Almost every track they used sounds better on Unsurpassed Broadcasts.
I also highly, highly recommend Release From Limitation, on the same label this set is on, Remasters Workshop. Once The Beatles had returned from their trip to visit the Maharishi in India, the got together and recorded demos of the many songs they'd written in Rishikesh. These demos are essentially the entire White Album, plus or minus a few tracks, and have become known among collectors as the "Esher" demos (many were recorded at Harrison's home in Esher). They would've been the fifth disc of this set, but RMW had issued Release From Limitation just a month before I came to him with the idea for this set. So consider that a supplement, or companion disc. I might eventually do some art for it for those that want to merge it with Caught On Tape.
Start with those, because they are the most listenable and most universally-beloved by Beatles fans. They make a good starting place in conjunction with Caught On Tape!
You're most welcome!