I know that technically there no need to rush into exporting Finale .mus files into a format that Dorico can read, but then again, oh yes there is. We never plan for disasters to happen, but they usually happen when you aren't expecting them, and they can be a real pain if you aren't ready.

I lost a significant number of files when I was in the middle of a major move between continents and getting set up with a new backup plan. Long-story-short, our move was delayed by a month and I was out of one backup solution and not ready for the other for that month. I had a hard drive brick and a flash drive failure with days of each other during that change, and it happened when I was the most vulnerable.

Be ready. Ask yourself this question: if I suddenly lost all access to Finale through a freak series of accidents, software failures, and/or unplanned vendor obsolescence, would I be upset to no longer have access to the .mus files I currently have?

Most people would answer yes. I just found out about this two weeks ago, and I am being diligent to make the conversion of everything necessary. Things happen. Learn from me and err on the side of safety.