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Mediatypes are the classification of type of items on Internet Archive to indicate how the system should present and produce derivations from them. Created and added to in an ad-hoc fashion over the course of decades, these mediatypes are relevant

Currently, the Internet Archive recognizes the following mediatypes: texts, audio, movies, software, data, image, and web.


Presents printed materials or compilations of images. Usually is rendered into the book reading software, as well as receiving OCR (optical character recognition) and alternate formats such as PDF, DJVU and EPUB. Most affiliated with the Book Scanning Operation.

Audio (and etree)

Music, sound, or any number of audio files. Originally created There is also a specialized *etree* mediatype affiliated with audio, that allows for specific treatment of those files.








Accounts for the patrons of the Archive are also considered items, and are given an "account" mediatype. It is currently only possible to create an account through the account creation system. All accounts on the archive start with a @ character, e.g.

Other Considerations

There are occasionally other mediatypes in the mediatype metadata field, due to errors, old tests, and other factors, but they are not specifically valid. They are often trapped inside dark or disused items.