I have been capturing my family's home movies, many of which are on Mini DV tapes.
I use a 2012 MacBook for my captures because it has a native FireWire port and doesn't require any adapters. I tried using Final Cut, iMovie, and QuickTime to capture these tapes, but all of those options had issues that prevented the footage from capturing cleanly. I also tried capturing the analog signal using an analog capture device, but the quality was noticeably lower than the direct digital output.
I eventually stumbled across a program called DVRescue. It captures the DV stream from the tape directly as it plays without trying to split the clips, which works perfectly for what I’m doing. From what I understand, it was created by archivists and it is completely free to use.
Download DVRescue here:
https://mediaarea.net/DVRescue