Before we talk about the repack, let's remember why this version is the definitive way to play. DMC4 Special Edition didn't just polish the graphics; it added a massive amount of content:
A: Install _Redist folder contents (DirectX, VC++ runtimes). Also, try running as administrator.
NVIDIA GeForce 8800GTS / ATI Radeon HD 3850 or better. DirectX: Version 10.
remains a masterpiece of combat design. Using the FitGirl Repack allows you to get into the action faster and with a smaller footprint on your hard drive. Once installed, grab a controller (highly recommended over keyboard/mouse) and start practicing those Max-Act revs with Nero!
I notice you’ve mentioned — this appears to be a reference to a pirated/cracked copy of the game.