Where do I select my DVD Drive letter?
Under certain conditions, Zoom Player needs to know the physical drive letter of your DVD drive.
When Zoom Player is first run, you should be prompted for a drive. If you want to change the drive,
simply open the Advanced Options dialog and set the drive on the "Values / Interface" tab, or under
the Basic Options dialog, set the drive on the "Advanced Options / Playback DVD / DVD Settings" page.