Shockwave (Director)

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File Format
Name Shockwave (Director)
Extension(s) .dcr, .dir, .dxr
PRONOM x-fmt/341, fmt/317, fmt/486
Released ≤1995
For Shockwave Flash, see SWF.

Shockwave is a platform and format for multimedia applications, video games, etc. It was owned by Macromedia during most of its formative years, and is now owned by Adobe. It has many names, most of which involve permutations of the words "Macromedia", "Adobe", "Shockwave", and "Director". Director is the application usually used to develop it. It is distinct from SWF (Flash).

The format is based on the RIFF metaformat, but with data stored as big endian, (so the magic bytes are RIFX instead of RIFF)

Shockwave also has a plugin system called "xtras" which may complicate the correct interpretation of some files in the future.


This format has three related extensions: DIR is uncompressed, DCR is compressed, and DXR is encrypted.


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