public bool OnInsertMediaFile(object cmd)
{
string filter = ResourceHelper.BuildFileFilter(FileFilterType.AllAudio,
FileFilterType.AllVideo, FileFilterType.AllFiles);
string keyCaption = "kstidInsertMediaChooseFileCaption";
string defaultCaption = xWorksStrings.ChooseSoundOrMovieFile;
return InsertMediaFile(cmd, filter, keyCaption, defaultCaption);
}