Dash_480.mp4

: Instead of one large file, DASH breaks the video into many small segments.

: Tools like Video DownloadHelper can detect the various DASH streams and allow you to select your preferred resolution. DASH_480.mp4

: While mostly associated with Reddit, similar naming conventions are used by YouTube's internal API and various open-source media servers using Dashcam Viewer software for specialized hardware. : Instead of one large file, DASH breaks