So how are others getting playlists onto a Cowon Plenue D?
I found that the M3U(#Ext) almost works, but not quite properly. If I can't get the playlists working properly I may have to return the device.
Here's how I do it:
In MusicBee, you can access the settings for the Plenue D by clicking on the MusicBee title in the upper left-hand corner and selecting Edit>Preferences>Devices>Plenue D and clicking the Configure button. Or you can find it in the bottom of your Library Explorer panel under Devices (if you use the Library Explorer Panel). Using this method, you would select the Plenue D and click Settings. If you want to work with the SD card, you will find it listed according to the drive letter it shows up as under Preferences>Devices, or as Removable Disk (with a drive letter) under the Library Explorer.
Now, where it says music files:, set it to however you like all of your music organized. I use Music\<Artist>\<Album>\<Disc-Track#> - <Title> but really, set it however you like. Further down, where it says playlists path, set it to wherever you want your playlists stored. You can do Playlists\ if you like, but I don't like to create unnecessary folders, so I use Music\ so that they are stored in the root of my Music folder. Again, go with whatever scheme you like. Beneath that, you will find create a subfolder for each playlist and its tracks. Leave this box unchecked. For save as format choose M3U(#EXT) from the dropdown. path prefix for tracks should be set to a single backslash: \ Finally, use relative file paths is also unchecked.
If you use an sd card, make sure the settings for that drive are exactly the same.
Now you can transfer playlists to the device by right clicking the playlist and selecting Send to>Device>Plenue D (or Removable Drive--you can use either or both). The music files will be organized in the way that you have selected, no matter what list they are on. The playlists will go where you have selected as well. When finished, right click the Plenue D in the Library Explorer and select safely remove (or do this through your OS).
You can now select your playlists from the music selection toolbar on the Plenue D. While browsing, click the back arrow until you can't go back any further and the toolbar appears near the top of the window. The one that lets you browse by Folders, Artists, Albums, etc. Scroll all the way to the right and the last icon on the right will look like a piece of paper with a musical note. Select that. This is where your playlists will show up. They will all appear here together, no matter where you have stored them.
And that's it! One of the benefits of this method is that your files are only stored once on your device, no matter how many playlists they appear in.