A system for converting an adaptive media stream to downloadable media includes at least one network interface, at least one memory, and at least one processor. The at least one processor is configured to receive, from a requesting device, a request for converting at least a portion of a media stream into a downloadable multimedia container, initialize a plurality of worker threads, retrieve, via one of the plurality of worker threads, a segment of the media stream from a storage location, concatenate, via the one of the plurality of worker threads, the retrieved segment into a multimedia container, determine that each segment of the media stream associated with the at least a portion of the media stream is included in the multimedia container, and transmit, via the at least one network interface, the multimedia container to the requesting device.