Filemagic is built on a powerful engine that improves the handling of large files, particularly advantageous when working with MP4 videos, which can be big and require considerable system resources. This enhancement means users will avoid performance issues, even with vast video libraries. https://www.filemagic.com/en/video-files/mp4-file-extension/how-to-open-a-file-with-the-mp4-file-extension/