Your video may not meet the listed requirements for the upload tool. You may try converting and compressing your video for web content or you can contact the Mediathread team to arrange to drop off your video: firstname.lastname@example.org
Tips for Converting
If you are looking for a free simple compression and conversion tool, download MiroVideoConverter.
Follow the directions provided and convert your video choosing the following setting:
Other Devices and Formats ----> MP4
Next, upload the new video to Mediathread.