To transcode media Vordio uses the free FFmpeg tools. These need to be downloaded and installed on your machine.
NOTE: Vordio now attempts to automatically download, install & configure FFmpeg when first run. You will only need to follow these instructions if that step fails.
Although FFmpeg can be downloaded & used for free, please consider donating to support this amazing project.
FFmpeg binaries are distributed as an archive. You will need to extract the files and look to find which directory contains tools called ffmpeg & ffprobe.
You then need to tell Vordio where this directory is. Browse to, or drop this directory into FFmpeg tools field in settings.
Mac example using builds from www.ffmpegmac.net
Windows example using builds from ffmpeg.zeranoe.com