Ordered transmission of digital content items

摘要

The disclosure provides a system and method for managing and sequencing the transmission of digital content items from a network-accessible content service to a portable digital content device. The content service includes a cache management subsystem and provides storage for a plurality of playlists which are variously associated with user accounts and which each contain one or more digital content items. The cache management subsystem is configured to sequence transmission of digital content items to a given portable device based on attributes associated with the playlists containing the digital content items to be transmitted to the device.