The format has a TIFF-image structure. It is generated by Canon cameras. The CR2 photo is stored in an uncompressed form and allows you to edit such settings as white balance, exposure, and other settings for photos that were already taken. It is the successor format to CRW, which was used in previous generation Canon SLR cameras.
To decompress a DBK file outside Sony Ericsson PC Suite, the user should rename the file extension to .ZIP and open it with a .ZIP decompression utility. DBK files are also associated with FJ Software Development's MyPhoneExplorer, which can also be used to manage a Sony Ericsson mobile phone.