Dvdes-699-es.mp4 -

A common ISO language code for Spanish . This suggests the audio or subtitles are in Spanish.

This is typically a serial number or a catalog ID within a specific library, such as an internal corporate training module, a series of educational lectures, or a documentary collection. DVDES-699-ES.mp4

This prefix usually indicates a "Digital Video" (DVD) source that has been localized for Spanish (ES) speakers. A common ISO language code for Spanish