Hi, qlaval!
This is an interesting(and welcome) development in Power Director. I stepped up some time ago from PD7 to PD8, the installation of the latter required the uninstallation of the former. But last year(2015, I'm writing this at 2.37pm, New Year's Day, 2016)I bought and installed PD14 Ultra, and the installation process
DID NOT require the uninstalling of PD8 Ultra, so now I have both versions on my computer, which is just as well, because when it comes to disc authoring, PD14 Ultra falls short of my expectations. I'm one who wants to make the most of a DVD's storage capacity, I want to be able to, when necessary, pack at least 2 hour's worth of content onto a disc. This I can do with ease in PD8 Ultra but not so in PD14 Ultra. The reason is that PD8 Ultra gives me the option of authoring in DVD-SP, PD14 only allows DVD-HQ or "Smart-Fit" and I'm somewhat wary of Smart-Fit lest it chops out some of the content of my production in the authoring process, while DVD HQ only allows a touch over 1 hour's worth of content and if I play a DVD burned in HQ, it tends to stutter and freeze in a domestic DVD player, I've not had that problem with discs burned in DVD-SP. Having two versions of Power Director on your computer can prove useful.
Cheers!
Neil.