ExifTool
M4A, M4B, M4P, M4V - MPEG-4 Audio/Video (Quicktime-based)
MEF - Mamiya (raw) Electronic Format (TIFF-based)
MIE - Meta Information Encapsulation (MIE specification)
MOS - Creo Leaf Mosaic (TIFF-based)
MOV, QT - Apple QuickTime Movie
MP4 - Motion Picture Experts Group version 4 (Quicktime-based)
MPO - Extended Multi-Picture format (JPEG with MPF extensions)
MQV - Sony Mobile QuickTime Video
MRW - Minolta Raw
NEF - Nikon (raw) Electronic Format (TIFF-based)
NRW - Nikon Raw (2) (TIFF-based)
ORF - Olympus Raw Format (TIFF-based)
PDF - Adobe Portable Document Format
PEF - Pentax (raw) Electronic Format (TIFF-based)