cl-riff
The Resource Interchange File Format (RIFF) is a generic file container format for storing data in tagged chunks. It is primarily used to store multimedia such as sound and video, though it may also be used to store any arbitrary data. Chunks are represented as plists, with accessor methods defined for chunk-id, chunk-data-size, chunk-data and file-type.

Repository: https://github.com/RobBlackwell/cl-riff

BSD License