Windows Media Player 11 shoppers should finish this progression, however it's discretionary for Windows Media Player 12 purchasers.
Windows Media Player 11 ລູກຄ້າຕ້ອງສໍາເລັດມີຄວາມຄືບຫນ້າດັ່ງກ່າວນີ້, ແນວໃດກໍ່ຕາມມັນເປັນຄວາມຮອບຄອບສໍາລັບ Windows Media Player 12 ລູກຄ້າ.