1. A subscription system for playing media files on a user device comprising: at least one of the following: a first file access authorization, which authorization enables a user to play at least two different media files on a player program on the user device, at least two different media files, which media files are capable of being played by a user on a player program on the user device in accordance with a first file access authorization, or a player program, which player program is configured to play at least two different media files on a user device in accordance with a first file access authorization; wherein the at least two media files are selected by the user; the at least two media files are transmitted to the user device over a communications network; each of the at least two media files comprises at least one of moving images, music, spoken words, or application software; neither of the at least two media files nor its content is related to, a copy of, or customarily distributed with the other of the at least two media files or its content, except that a common filename extension, file format, medium, or genre does not in and of itself render the two files or their respective content related; at least a portion of each of the at least two media files is at least one of encrypted or copy protected for at least some period of time; the user device comprises memory, at least a portion of which memory is primary; with respect to each of the at least two media files: at least a portion resides in the primary memory on the user device at the time of play, and the player program is not configured to enable storage of the file in non-volatile memory on the user device; play of the at least two media files is limited by at least one predetermined play parameter; the at least one predetermined play parameter is configured to remain in effect for at least two consecutive logon sessions; and to the extent the playing of the at least two media files exceeds the at least one predetermined play parameter, the playing is limited in a manner comprising at least one of: terminating, interrupting, or denying play of at least a portion of the at least two media files, interrupting or denying access to at least a portion of the at least two media files, or terminating, disabling, ceasing, inhibiting, interrupting, or rendering inaccessible at least a portion of the functionality of the player program.