Many "720p" tags on free sites are actually upscaled 480p files with muffled sound.
For fans who want to share this experience with family members who prefer their native language, a dual audio release is indispensable. It allows viewers to switch between, for example, English 5.1 DTS and Hindi, Tamil, Telugu, Spanish, or German audio tracks without changing the video file. Many "720p" tags on free sites are actually
If you're looking for a specific file, here are the specs: English 5.1 DTS and Hindi