I am not sure if I can help specifically but I came across this problem when I converted a MOV file to AVI, Pinnacle wouldnt recognise it so i went the long way round. If you have a TV card. I plug my video camera using the red/yellow/white connection to PC, play and record through the TV on to the hard drive then open into Pinnacle. It works for me. I have a SonyVaio desktop and the TV record goes to D: drive Vaio entertainment, check the file number, open Pinnacle open file and t loads to Pinnacle, my version is older than yours 9.4 but it works fine. Hope this is of some help, you may have a different system.
Best Samsung Galaxy S7 deals: Where to buy Galaxy S7 & Galaxy S7 Edge