I am having issues uploading a video using the TechSmith Relay Classic Recorder Batch Upload, or the Web Upload option.
For unsupported video file formats (MTS, MOV, etc.) as well as MP4 files that are using the H.265 codec, please convert the files to the H.264 MP4 format before uploading. Below is a link to download Handbrake, a free media conversion tool and a video showing the steps necessary to create an MP4 that can be successfully uploaded directly to the TechSmith Relay website.
Download for Handbrake: Handbrake Website
Quick video tutorial on how to use Handbrake: