Are you talking about this thread: http://www.opserver.de/ubb7/ubbthreads.php?ubb=showflat&Number=341634#Post341634 ?
If so, this reads more like "we are using already multithreading for media functions" and not like "media functions would be faster if you knew how to spawn a thread."

Btw, not only media functions can be faster, everything that isn't time critical can be boost up. Eg. HTTP Requests or every other operation that uses the network should run asynchronously in another thread. Also Pathfinding could run in a second thread.