Avid DNxHD is a high-definition video codec developed by Avid Technology. It is designed for professional video editing and post-production, providing a balance between image quality and file size. DNxHD supports various resolutions and frame rates, making it suitable for different types of video projects. The codec is widely used in the film and television industry, particularly in Avid Media Composer and other editing software. Its ability to maintain high-quality visuals while allowing for efficient storage and playback makes it a popular choice among video professionals.