To install simply extract jadisc1.rar and jadisc2.rar. Using a virtual drive software, for example Daemon Tools, mount disc one. When prompted insert (mount) disc two. After install, you must patch to 1.01. To play you must have disc one mounted, a cracked .exe doesn't work online. Hopefully will see some of you in the duel servers :D. Enjoy!
Neon1988