Sony DSC-F1 PMP Format
PMP is an image file format used by early Sony digital cameras such as the DSC-F1 released in 1996. Photos taken with these cameras were given filenames like PSN00001.PMP, PSN00002.PMP, and so on. The PMP format is based on JPEG but includes a proprietary header that stores camera metadata.
The DSC-F1 was capable of generating metadata, and Sony needed a file format that could store it. Nowadays almost all digital cameras store metadata in standard JPEG files according to the DCF/EXIF standards. But DCF/EXIF weren't adopted by the industry until 1998. Sony released the DSC-F1 in 1996 and since the industry hadn't yet settled on a standard they created their own proprietary file format.
Following is a list of bytes within the PMP header that encode metadata attributes. These attributes are displayed in the Sony ALBUM.EXE utility when you pull down the "Image" menu and select "Information".
You can convert a PMP file to JPEG format with no loss of quality by simply removing the first 124 bytes of the file and changing the extension to JPG.
