WinRAR v5.40 does managed to unpack 680MB of it.
but you are correct, the EXTRAS part of the archive is knackard.
I have the Original archive buried away somewhere.
If no-one else with a faster upload speed than me, will upload it for you... (hint, hint!)
i will do it in a week or so.
Oh man ! i want this NES Gamebase so much and i searching a lot of time for this!
ok, ok, it's happening.
it will be uploaded in several parts over a few days.
1st up will be the GB setup, emu, screens and roms. (100MB) - sometime today.
extras will be in 4 x 500MB chunks (should be up by next week).