Thanks for the link - it's a very interesting site, as a translator myself it proved to be a very insightful read.
I use 7z personally, best I've found in terms of compression and it's pretty fast too. RAR+PAR makes sense in some cases, though. I'm with you on Segagaga, I'd love to be able to play it.
That kind of depends on what setting you use. Care to post some benchmarks? I'm not trying to say I'm right and you're wrong, but when I've checked 7z has come out best overall by a noticeable margin. I'd be interested to see anything to the contrary.
The Berkley disc sheds ALOT OF of light on what happens next in Shenmue Shen Hua apprently was supposed to fight Lon Di
Wasn't that Berkley GD-rom a bonus that came with VF3 (first release) in Japan? Must be quite common then.
SGGG needs to be redumped at least once since two versions of the game have been released (the later censored version has not been dumped I think).