Propose a directory scanner....scans a directory and returns a list of files of a particular type, say audio, movies, images ...
I have generally used this to create randomness in compositions, saves hard coding content, or simply stepping tough a number of digital assets.
Similar to the "Directory Scanner" patch in qc.
"This patch scans a directory at a given path, possibly recursively, and build a list of the image, movie or composition files it contains.
The directory path is considered absolute if starting with '/', relative to the current user directory if starting with '~', or otherwise relative to the location of the Quartz composition file if available."