A RAW file is an image generated by digital cameras such as Panasonic, Leica, and Casio cameras. It contains uncompressed, raw image data that can be adjusted for exposure and white balance using software that supports the format. RAW files are used for storing unaltered image data as captured by a digital camera’s CCD.
It may also be a Uncompressed PCM (pulse code modulation) signed audio data file; contains raw audio data stored in a binary format; does not contain any header information or use an audio codec.
These most likely are just images and should be small in size.