.BNP File Extension
File TypeSony Camcorder Video Data File
File format categories include Binary, Text, XML, and Zip. The format of this file type has not been determined.
What is a BNP file?
Data file created by some Sony digital camcorders; stored within the AVF_INFO directory on the camcorder and contains metadata about the recorded videos; used for displaying information on the camcorder such as the dates and number of videos recorded.
If you delete the files in the AVF_INFO directory, the recorded camera files will not play back correctly. However, you can still transfer the video data to a computer.