Ballerburg is kinda obscure, but plenty of fun... unfortunately it's pretty hard to find an english version online. This disc contains it, but the FMVs and music were ripped.

Thankfully, you can restore them by copying the files from another version of the game (german/russian will work fine, since these files feature no voice acting at all).

You'll have to restore:
15 .bik files in the "Videos" folder
6 .mp3 files in the "Sound" folder
5 .mp3 files in the "Sound\Atmos" folder

At first this seems to be missing a disc. But after actually looking at the files it seems this was a rare single disc release.

Everything seems install-able from the menu.

Looking like this item is missing at least 1 of the discs