FAQ:Why is the “OK” button unavailable when I select MPEG for export?


 * It has been reported that choosing “Export to DVD” will start the one-time, required, free MPEG encoder registration. After registering you will be able to export to the MPEG format. Go to File > Export > Adobe Media Encoder. Select "MPEG2-DVD". In the summary select "Video". Press the "Activate" button. Enter the returned code and you are done. You need to be connected to the Internet though.