1. A method of distributing playable media items, the playable media items corresponding to machine readable media readable by a subscriber machine player, the method comprising the steps of: (a) setting up a subscriber delivery queue for a subscriber, said subscriber delivery queue consisting of a list of one or more playable media items to be delivered to the subscriber; wherein said subscriber delivery queue is set up at least in part in response to item selection directions provided by the subscriber; (b) setting up delivery rules for the subscriber delivery queue, which delivery rules include a randomized delivery option, under which option playable media items are shipped to the subscriber in a random sequence.