madVR is a DirectShow video renderer utilized by thousands and thousands of home theater lovers around the world. Designed being a no-compromise approach, madVR tries to achieve the best video playback quality. It tries in order to automatically find other PCs in your own local network which are also operating the app. If any such Personal computers are found, you can remotely swap audio and subtitle tracks, jump in order to specific chapters, etc. For this system functionality to work, It tries in order to access the local network, obviously. Thus if your firewall complains, you understand exactly why. If you don't ever plan in order to use madVR's network functionality, you may safely tell your firewall to obstruct any and all madVR network accesses. Please rest assured, though, that the particular program does not upload your exclusive data to a server or anything at all of that sort. So allowing the particular app to access the LAN need to not result in any privacy or even security problems. Features and Highlights Large quality chroma upsampling High quality running (bicubic, mitchell, lanczos, spline etc) Premium quality YCbCr -> RGB conversion Range