The CUE/BIN format is a common way to represent a CD or DVD image. The BIN file contains the raw binary data of the disc, essentially a sector-by-sector copy. The CUE file is a text file that describes the layout of the BIN file, including track boundaries, index points, and other metadata. It acts as a table of contents for the BIN file, allowing software to properly interpret and access the data on the disc image. This format is often used for archiving and backing up CDs and DVDs, particularly for audio CDs and game discs. Without the CUE file, the BIN file is just a large chunk of data and difficult to use. The CUE file specifies the structure of the data, enabling software to mount the image as a virtual disc or burn it to a physical disc. The format is widely supported by various disc imaging and burning software.