Embodiments are disclosed for presenting a digital content item comprising a plurality of content portions. One example embodiment includes a computing device comprising a primary content storage machine, where the primary content storage machine is configured to selectively store one or more content portions of a digital content item. The computing device is configured to determine a dynamically changing content access window including one or more content portions useable to provide an above-threshold user experience based on a current access position of the digital content item. The computing device is configured to dynamically load the primary content storage machine with the content portions of the digital content item corresponding to the content access window and dynamically unload the content portions of the digital content item outside of the content access window from the primary content storage machine.