Sonic Foundry 4.0 is a professional video editing software designed for Windows operating systems. Released in 2005, it offers a robust set of tools for video editing, color correction, and audio post-production. The software is widely used in the film, television, and advertising industries.

Acid Pro 4, on the other hand, is a professional music production software developed by Sonic Foundry. Released in 2004, it offers a range of tools for music creation, editing, and mixing.