The Virtual Drive will not unmount if both Virtual Drive and External Player is used.

h4. Steps to Reproduce
1. Configure a Virtual Drive and an External Player.
2. Launch a video stored in an image.
3. Stop playing the video.

Expected: The Virtual Drive should unmount.
Result: The Virtual Drive remains mounted.

h4. Additional Information
The Virtual Drive is successfully unmounted if the internal video player is used.
External Player and Virtual Drive unmounting does work if using Moving Pictures plugin.