once again I find I need to decide between R1 and R2 of a Star Trek series. previously with TNG I went with R2, partly due to the nice plastic clam-shell casing, partly because it was actually a fair bit cheaper (via amazon.co.uk). now that the pound has appreciated and I've discovered amazon.ca, they appear about the same price, or R1 is now actually marginally cheaper. any thoughts? AFAIK, the difference is again in the packaging, R2 again has the plastic clam-shell, but R1 is now different from the TNG versions, with a plastic slip-case, and plastic digipak-type holders, although the disc holders are now conveniently book-like rather than fold-out.