Steps to reproduce:
1. Start and stop an unscheduled recording
2. the Mediapackage gets the ID "Unscheduled-recording-xxx"
3. It gets ingested
4. It gets processed but in the compose step the video could not be encoded, because the URL for the workspace is not "http://myserver/files/mediapackage/Unscheduled-recording-xxx" but "http://myserver/files/mediapackage/unscheduled-recording-xxx" with a lowercase "u".