I went from version 11 to 18 to handle AVCHD files. The installation was easy. When I wanted to take an old installation file * .STX I got the message "Pinnacle Studio has encountered a problem." I sent a message to Pinnacle because there was a guarantee of 14 days. The service told me that the guarantee was for ais facility after he had to take a paid ticket. I find it unacceptable method and the limit of the scam. Hence my very low score. For those looking for a user manual in French: [...]