The disclosure sets forth techniques that enable mobile devices to send and receive multimedia files across dissimilar communication platforms. Multimedia files being sent between mobile devices may be subject to file size limits, based on the communication platform being used and the capability metrics of the mobile devices. This disclosure describes techniques for transmitting a multimedia file as a plurality of segment files, for the purpose of conforming with file size limits associated with a sending device or a recipient device. A multimedia file may be partitioned into a plurality of segment files that may be re-combined into a single multimedia file that substantially reproduces the multimedia content of the original multimedia file. Further, a multimedia file may be partitioned into a plurality of playable segment files that, when executed or played individually and in sequential order, substantially reproduce the multimedia content of the original multimedia file.