For IPTV or web radio, the duration in the #EXTINF line is usually set to -1 because the length is unknown.
If you are looking to create a "useful" version of this file, it usually contains paths to local files or URLs for internet radio/IPTV streams. Structure of a "Useful" M3U File 140.m3u
A .m3u file is a plain text playlist format used by media players like VLC, iTunes, and Winamp to queue up music or video streams. For IPTV or web radio, the duration in
#EXTM3U #EXTINF:240,Song Title - Artist Name C:\Music\folder\song1.mp3 #EXTINF:-1,Live Stream Title http://example.com #EXTINF:180,Local Video File /Users/Name/Videos/video1.mp4 Use code with caution. Copied to clipboard Key Tips for Usefulness Example Template
Starts with #EXTINF: , followed by the duration (in seconds) and the title. File Path: The actual location of the media. Example Template