odd this: k3b vs juk and grip

I've been trying to burn some cd's with k3b, and have noticed some strange goings on... If I use an m3u playlist generated from xmms, it works fine. If I try one generated from juk or grip, I get "unsupported format" from k3b. Those playlists play fine in xmms, and if I re-save the playlist with xmms, it'll work fine with k3b. Is this due to something left checked/unchecked in k3b, or something that just hasn't been addressed yet? -- http://oldgoldandblue.typepad.com