👉 Lossless refers to a digital format or encoding method where data is not lost during transmission, thus preserving quality and integrity of the original file. This type of compression is often used for video files, audio tracks, and other types of multimedia content that need to be stored without losing information about the source material. In other words, lossless means "without loss" or "with no loss", which implies that even if a file contains some data that was originally lost during transmission, it remains intact in