Correct path in playlist for songs from SD card

[ruleana]

Hello!
I compose playlists in Windows media player by dragging files from my mp3 Player folders opened on computer and save them in my player as m3u files. But if a add a song that is located in the SD card installed in the player, save the playlist and play it from the player, the song is not found.
How should I call the SD card or write the path of the files from SD in playlists to be found correctly?
Thanks

[Duceboia]

The path must be  <microSD1>/Artist/Album/track title
At least I use this in Foobar2000 saved playlists with Hood results.