Patent attributes
An on-demand server system herein includes a memory controller that coordinates access to one or more flash-based memory devices. The flash devices store large amounts of video content that can be selectively viewed on-demand by each of multiple destinations over a respective network. In addition to having access to an array of flash memory devices, the memory controller has access to a corresponding read buffer and write buffer. Use of the read buffer and the write buffer enable the memory controller to switch between transferring data stored in the write buffer to the array of memory devices and transferring the data in the array of memory devices to the read buffer. The write buffer stores on-demand video content that can be selected for viewing by different users. The read buffer stores segments of the on-demand video content currently streamed to the users.