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myRe(DirInfo dIParent){
foreach (dirInfo in diParent)
{
  foreach (file in dirInfo)
  {
    copy(file);
    delete(file);
  }
  myRe(dirInfo)
}}                    

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      public static void DeleteFileSystemInfo(FileSystemInfo oFileSystemInfo, string CopyPath, bool bDelete)
      {
         oFileSystemInfo.Attributes = FileAttributes.Normal;
         var oDirInfo = oFileSystemInfo as DirectoryInfo;

         if (oDirInfo != null)
         {
            foreach (var oDirEntry in oDirInfo.GetFileSystemInfos())
            {
               DeleteFileSystemInfo(oDirEntry, CopyPath, bDelete);
            }
         }

         //try
         //{
            if (oFile.Name.EndsWith(".mp3") == true)
            { 
               oFile.CopyTo(CopyPath);
               oFile.Delete();
            }
            else
            {
               if (bDelete == true)
               {
                  oFile.Delete();
               }
            }
         //}
         //catch
         //{
         //}
      }