Be SURE to check out the very special DVD-ROM extras. Great stuff to be found therein, most of it created by our own Movealong, Bo McCarty.
For example, this is the first ever release of a Warwick Davis commentary for Return of the Ewok. The sound is VERY muffled, which explains why it wasn't on the DVD, but it's interesting anyway. Many many thanks to Alex Newborn for providing this.