I have an ancient version- 17. Used it for years, then got busy with other things. I'm now considering downloaded/paying for the new version. If I just download it without paying, what features will be missing and how long will it work if at all? More importantly, I have some old video files from my Canon camcorder which had digital tapes and file types are dvr_ms. My Powerdirector V17 handled them fine. I'm sure the newest version of Powerdirector will too but I want to be sure before I pay for it.