[ 157 ] — (2).mp4

: The "(2)" usually suggests that a file with the exact same name already existed in the destination folder, so your operating system appended the number to avoid overwriting it.

The filename appears to be a generic label automatically generated by a device or software, making it difficult to identify a specific video without more context. Commonly, filenames structured this way indicate:

: The "[ 157 ]" likely represents a sequence number from a dashcam, CCTV system, or a batch download tool.

To help me give you a more relevant text or description, could you clarify:

(e.g., a tutorial, a lecture, a music video, or personal footage).

(e.g., a specific website, a backup from a phone, or a security camera SD card).