Image::Size
- CPAN module that calculates the height and width of given images at run time.
- http://www.byz.org/~randy/perl/Image::Size/

File::Attributes
- CPAN module for getting and setting file attributes. Includes limited documentation.
- http://search.cpan.org/~jrockway/File-Attributes-0.04/lib/File/Attributes.pm

FLV::Info
- CPAN module for reading metadata from Macromedia Flash Video (FLV) files. Includes documentation and examples.
- http://search.cpan.org/~cdolan/FLV-Info-0.18/lib/FLV/Info.pm

SVG::Metadata
- CPAN module for reading SVG metadata. Includes documentation and examples.
- http://search.cpan.org/~bryce/SVG-Metadata-0.28/lib/SVG/Metadata.pm

MP4::Info
- CPAN module for reading and writing MPEG4 metadata. Includes documentation and examples.
- http://search.cpan.org/~jhar/MP4-Info-1.12/Info.pm

MP3::Tag
- CPAN module for reading and writing MP3 ID3 tags. Includes documentation and examples.
- http://search.cpan.org/~ilyaz/MP3-Tag-0.9709/Tag.pm

Image::MetaData::JPEG
- CPAN module for reading and writing JPEG metadata. Includes documentation and examples.
- http://search.cpan.org/~bettelli/Image-MetaData-JPEG-0.15/lib/Image/MetaData/JPEG.pod

Image::ExifTool
- CPAN module for reading and writing EXIF, GPS, IPTC, XMP and other metadata in image, audio and video files. Author's site includes documentation and examples.
- http://www.sno.phy.queensu.ca/~phil/exiftool/