4DI is a proprietary image format that provides smaller file sizes than JPEG for the same quality, with faster encoding and decoding speeds and a smaller decoder size. It supports a range of applications from cameras to medical devices. 4DS is an audio format that offers smaller file sizes than MP3 for the same quality, with faster speeds and a smaller decoder. It supports music storage and streaming applications. 4DV is a video preprocessing technology that provides smaller file sizes than standard encoding for the same speed, and supports MPEG formats and future H.265 compatibility.