For the most part, Premiere Elements is not backwards compatible. You can not open a project started in an older version of the program with a newer version of the program. In fact, trying to often corrupts the project file and makes it impossible to open in either version of the program!
In my books and on my site and on this forum we always recommend finishing your project in the same version you started it in.
The project files have also only recently become cross-platform. I don't believe you can open a project created in version 11 of the Windows version with the Mac version.
Thanks for the response. Is the summary correct?
-- If I upgarde both my Windows and Mac versions to Premier Elements 15, new projects will be cross-platform compatible? For example, I could rearchieve my Windows version 11 projects and view/edit on either computer?
-- Even version 15 won't open older archieved (typically to Blueray discs) projects? I'm not even sure I still have some of my older Windows versions on original installation discs And I don't think I can still download them.
I committed to Adobe Premier Elements many years ago and have stuck with it primarily for this multi-generational compatibily. I'm disappointed to learn that Adobe does not share this goal.
1) If you create a project in version 15, you will be able to open it on either your Mac or your PC. Although the PC version does have some features (Chroma Key, for instance) that the Mac version doesn't, so it's not entirely seamless.
2) You will NOT be able to open a version 11 project with version 15. Not without potential problems and possible corruption. Do not even attempt it on a Mac or a PC -- or if you do, make sure you save a copy of the original project file so you'll have it in case your attempt destroys your .prel.
....... I'm not even sure I still have some of my older Windows versions on original installation discs And I don't think I can still download them.
You can get your old versions back but you need the serial numbers. If you don't have them they may be on your Adobe account if you registered the software.
Here is the place to get your old versions:
Thanks to everone for your advice. Very helpful. Much appreciated.
If your interested, search Youtube for dwverity to see some of my home videos.