exiftool: ExifTool is a set of Perl libraries plus an application script for
exiftool: reading and writing meta information in image,audio and video files.
exiftool: Reads EXIF,GPS,IPTC,XMP,JFIF,GeoTIFF,ICC Profile,Photoshop IRB,  
exiftool: AFCP and ID3 meta information from JPG,JP2,TIFF,GIF,BMP,PICT,QTIF,
exiftool: PNG,MNG,JNG,MIFF,PPM,PGM,PBM,EPS,PS,AI,PDF,PSD,DCM,ACR,THM,CRW,CR2,
exiftool: ERF,MRW,NEF,PEF,ORF,RAF,RAW,SRF,SR2,MOS,X3F and DNG images,MP3,WAV,
exiftool: WMA and AIFF audio files,AVI,MOV,MP4 and WMV videos,and XMP,ICC and 
exiftool: MIE data files. Writes EXIF,GPS,IPTC,XMP,JFIF,MakerNotes,ICC Profile,
exiftool: Photoshop IRB and AFCP meta information to JPEG,TIFF,GIF,EPS,PS,PSD,
exiftool: XMP,ICC,MIE,PPM,PGM,PBM,PNG,MNG,JNG,CRW,THM,CR2,ERF,MRW,NEF,PEF,MOS 
exiftool: and DNG images.  http://www.sno.phy.queensu.ca/~phil/exiftool/