The M3U format is time consuming and requires a seperate folder of the music that is alread stored on the comuter. This duplication of files eats up hard drive space and is a pain in the a**. I bought this sport model for the extended battery time. All other MP3 players accept WPL play lists…What gives? If I had know this before I would not have bought the sport. The time it takes to load a play list in M3U format offsets the advantage of extra battery time.
WPL requires MTP which the sport does not support.