static L<File> findVideoFiles() {
  L<File> files;
  loading {
    files = findAllFiles(concatLists((L) findDownloadDirectories(), ll(userHome("Videos"), userHome("My Documents"), userHome("My Videos"), "/big/Downloads", "/big/.")));
  }
  ret filter(files, func(File f) {
    S name = f.getName().toLowerCase();
    ret endsWithOneOf(name, ".mp4", ".avi", ".flv", ".mkv");
  });
}