Dd5.1 E... | -18 - Elite -season 1- Web-dl -hindi

It sounds like you're referring to a specific file naming convention for a video release. A useful feature based on that naming structure is the :

-Hindi DD5.1 → This tells you the audio track is in with Dolby Digital 5.1 surround sound , which is helpful for users who want high-quality multilingual audio, especially on home theater systems. -18 - ELiTE -Season 1- WEB-DL -Hindi DD5.1 E...