m3u playlists were deleted from directories?

[hiphip]

i am running the most updated build of winamp for android on a stock froyo install. my phone is a samsung infuse 4g. when i copy over music i move a directory. inside this directory are the mp3 files, the m3u, and a cover photo (jpg). my playlists load correctly, work correctly, etc. the problem i am having is that i have mounted my phone to add more music and found that every m3u file is missing off the micro sd. i go into each individual directory and see the mp3 files and the jpg, but no m3u. where have they gone? does winamp delete them after adding them to its database? this is rather annoying behavior and it makes it more difficult to manage my music between devices.