If the problem isn't with your hard drive on your laptop, you can always remove the hard drive from your laptop and hook it up to your main computer via USB. That way you can access all of your files and won't have to go through re-downloading them.
I have “mint” on a usb drive and can boot to it and see the hard drive from there. That way you don’t have to have a bunch of adapters. If the MB is bad you can remove the drive and put it into a desktop SATA connection. Even if the drive is messed up and can’t boot, you can still usually find the video files and other docs and offload them from the mint usb as long as the drive spins.