Only a WMV video will play as a video in Deskscapes.
WMV video though uses a lot of CPU usage.
Dream files can be either wmv or avi only.
I use this video converter https://www.winxdvd.com/video-converter/
I make tons of Dreams .
Open your Deskscapes program and add a wmv video and it
will play on your desktop like a dream , loop might not be good though.