I’ve written a lot about Premiere Pro and metadata. Surprisingly, almost as an after thought, the solution was shipped in the October 2014 release of Creative Cloud applications. It is hiding in the preference panel under the “Media” tab, and is called “Write clip markers to XMP”. I believe this is one of the most important features that was added to Premiere, because it addresses the issue of backup, archive and project sharing and also helps with on-line/off-line workflows.
Here is a brief video explaining how the preference works, and when you should turn it on, and when you should turn it off.
By the way, the clip shown in this tutorial comes from the amazing EditStock, where you can get the footage from the real world projects to edit on your own, and then submit for feedback from professional editors. I highly recommend it.
If you have any questions, post them in the comments below.