Open folder in Nautilus -> Right-click m3u file -> open with -> Other ... -> scroll to xmms -> check "Remember this application ..."
Originally Posted by mvelte54
Just make sure you have valid m3u's - some m3u playlist generated on windows tend to have non-complaint format or unrecognizable characters.
Here is how a proper m3u shall look like:
As you can see the file paths are fully relative - that way they will work the same way on Win and Linux.
#EXTINF:255,Nelly Furtado Whoa, Nelly! 1 - Hey, man!
01 - Hey, Man!.mp3
#EXTINF:234,Nelly Furtado Whoa, Nelly! 2 - ....On the radio
02 - ...On The Radio.mp3
#EXTINF:226,Nelly Furtado Whoa, Nelly! 3 - Baby girl
03 - Baby Girl.mp3
Absolute paths are mess most of the time, so avoid unless a specific case warrants it.