Need help with Visual Novel Installation problem

[urusaisenpai]

Heey Anime-Sharing Community =)
I have a slightly problem with installing a Visual Novel.
Downloaded a Game Named "燐月－リンゲツ" "Ringetsu"
I got the DVD-ROM Version of the game.

When i looked inside of the folder, where i downloaded it to
I go these files
Ringetsu Disk 1.ISO
Ringetsu Disk 1.MDS
Ringetsu Disk 2.BIN
Ringetsu Disk 2.CUE

I opened the Disk 1 ISO with Daemon Tools and inside there were the "Setup" Program.
And normally as a i do install the game with Applocale Admin and i have changed everything on my PC to Japanese.

I just clicked on the Setup file and let it install the game, when it was finish i just tried to launch the game but after 5 seconds the game i get an "This progam as crashed, Report this problem" Standard message. Literally i can't open the game not even for a secound.

I though it may had been a bug in the Installation. I tried to re-Installed the game but the same problem occurred.

So started to look inside the Installation folder in details to see what if there was something missing from the ISO File and in the Installation folder. Then i saw that the game i downloaded is 3.64 GB but in the Installation folder it's only 1.20GB.

Also then i recalled that the "Installation Setup" of the game NEVER asked me to the secondary Disk.

Now i have tried everything Mounted both Disks but it still won't copy disk 2 files inside the Installation folder
I looked inside the disk 2 there is some "Opening movies" that may be the reason that it wont start.

Now the question is "How do you Install this game in the right way?"

Please and Thanks ;_;