Below are the most likely explanations and a corresponding guide for each possibility. If you meant dvdplay (the original Windows DVD Player command): Guide to using dvdplay in Windows Purpose: Launches the legacy Windows DVD Player application (present in Windows 98–7, optional in later versions).

tasklist /m | findstr dvdplaymv Or view properties (right-click → Properties → Digital Signatures / Details).

It seems you are asking for a guide on — however, this is not a standard Windows command, media tool, or widely recognized executable.

mpv dvd:// For mplayer :

where dvdplaymv dir /s dvdplaymv.*

alias dvdplaymv='vlc dvd://'