Convert m4v to sou

What is the difference between .m4v and .sou?

Description: The M4V file format is a video container format developed by Apple and is very similar to the MP4 format, with the primary difference being the optional Apple Digital Rights Management (DRM) protection. M4V files are commonly used for TV episodes, movies, and music videos in the iTunes Store. These files can be played on Apple devices such as iPhones, iPads, and iPods, as well as on PCs using iTunes or other compatible media players.; The .sou file extension is associated with SBStudio II, a music composition and editing program. A .sou file represents a SBStudio II Sound File, which contains audio data used by the software. These files are typically used to store instrument sounds or sound effects that can be integrated into music tracks created within the SBStudio II environment. The format is designed specifically for use with the SBStudio II software, making it a specialized audio file type for music production within this specific program.