You need to select the drive after you choose Convert and Burn. A window will open from where you need to select the drive installed in your computer. In case Total Video Converter doesn't detect the drive, then you should check the Device Manager because there might be a problem. Go to Start > Run > devmgmt.msc to see if the drive is correctly installed. In case it's listed with a yellow exclamation mark, right click it and choose Update Driver. Reboot the PC and then try again.