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Is it possible to convert iMovie 11 library back to iMovie 10?

Started 4 months ago | Questions thread
Gary3000 Senior Member • Posts: 1,510
Re: Is it possible to convert iMovie 11 library back to iMovie 10?
2

drusus wrote:

I have an iMovie library created with iMovie 10 on a Mac running Catalina. The library is on a portable external drive. I temporarily connected this drive to another computer, a Mac running Monterey, and I opened the library with iMovie 11. This resulted in the library being converted to a new format, which iMovie 10 cannot open.

I would like to access this library again with the original computer that can only run iMovie 10 (the latest version of iMovie that can run on Catalina, from what I gather). Is this possible? Can an iMovie 11 library be converted back to a format that iMovie 10 can access?

I considered the alternative of updating the original computer to Monterey but it's too old for this.

disclaimer: i don't use iMovie ,
But I've been doing this stuff long enough to have a pretty good idea that the answer to your problem is : you're quite likely hosed.

sometimes there could be a chance of way or hack, perhaps a 3rd party tool or similar, but almost all the time a software developer upgrades a file format or library, unless it offers the ability to down-convert within the app, there is no backwards compatibility.

this forum might not have many experts on iMovie, so perhaps look for a iMovie forum that might have more experienced users who might have a workflow workaround for you. such as https://discussions.apple.com/community/ilife/imovie

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