Thank you for posting.
We would suggest you trying out our Converter Studio AVCHD Edition. It allows exporting into MPEG-2 format that is supported by Muvee autoProducer 6. You can get more information and download the trial version directly from our web site:http://www.elecard.com/products/products-pc/professional/converter-studio-avchd/
Unfortunately we cannot tell you what format will suit your need as it depends more on Muvee autoProducer 6 features. But you are always welcome to contact us again if you have any questions or problems.