An M3U (MP3 URL) file is a plain text file that contains a playlist of media sources. Instead of holding actual audio or video data, it contains a list of paths or web links (URLs) pointing to where the actual streaming media is hosted on the internet. When used for IPTV, an M3U file contains:
The absence of a formal standardization body for IPTV M3U extensions means players must implement robust, fault-tolerant parsers that ignore unknown tags while extracting essential data. iptv m3u file player