Storing video and movie files in the root level of a drive letter causes the media to index correctly but playback incorrectly (symptom is "can't play movie" error when selecting a movie by voice).

The easy fix is to move all such files into a sub-folder under the drive letter (Y:Movies, etc.).

Alternatively, a more complicated fix is to edit Amulet.ini to explicitly list folders to index, and add an extra backslash after any drive letters on their own (Y:\ instead of Y:), which then works fine. But it's also necessary to disable Scanxxx settings to stop Scanner automatically including the media center and shell folders.

Known issue in software version 2.17.50

Forum discussion thread