WPL files are text files that contain links to the locations of the actual audio files specified within the playlist file. It does not contain any audio itself. WPL files can be loaded into Windows Media Player version 10 or later only (http://www.microsoft.com/windows/windowsmedia/default.aspx).

In WavePad, WPL support extends specifically towards streaming an audio file off an Internet server - it is currently limited in its other uses. When you save to a WPL file the following components are generated by WavePad:

To create your WPL playlist from scratch, you can use WavePad for both recording and editing. To upload your MP3 file to an Internet server, you can use the FTP feature of WavePad (assuming the server supports FTP). Go to File menu -> Send... and choose the FTP upload option. Both WPL and MP3 files must be uploaded if you want others to use your playlist. To test your playlist file out, download the WPL file from the Internet server and then play it in Windows Media Player.

The settings dialog for the WPL Playlist is as follows:

Root URL

The URL where you will upload or store the audio file. This URL can have the following formats:

Absolute URLs
After creating WPL files with absolute URLs, you can put the WPL file anywhere and play it, as long as you can access the audio file via http or if its on your computer or LAN.
Relative URLs
The WPL files must be put in specific locations relative to the audio file.

MP3 Settings

Click the "MP3 Settings" button to open the MP3 settings configuration where you can set the format for the MP3 recording (for more information see the MP3 Settings dialog.