And even if you change the computer, the relative path can be identified, but the absolute path (for an example: C:/Files/My Music/Example.mp3) is not. Tips: Why do I tell you how to recognize the relative path of M3U file? Because you just need to copy & paste the URL, and then you can be free to share video/audio with others. And the M3U URL like '' is the relative path of M3U file. If the audio is being streamed online and no length is set, then you will see -1 here as the pictures shows. The number following the '#EXTINF' section is the audio length in seconds. M3U is misunderstood in the sense that it is actually just a computer file in the format of a text file that stores a multimedia playlist or a simple URL to the actual audio/video content, usually used for streaming music/video on the internet.Īn M3U file offers the index entries to each music, but it's not a real audio file.Īll M3U files have similarities, but also differences.