In the interest of providing a cross-platform solution, we'd suggest you use Blu-ray Converter for the entire process. Thankfully, no matter you want to save your Blu-ray movies on computer's hard drive for backup, or convert to common video files that you can play on media player or take them with you when travelling, there are lots of options available to accomplish the task. Let's say you've got hundreds of Blu-ray at your living room but get tired of lugging them around, and now you want to rip the movies in Blu-ray to the hard drive on your Mac or PC machine (or maybe to an external USB hard drive) to be able to access movies instantly whenever you want. Video enthusiasts are being going all in with online streaming service, and can be able to get the digital movie and TV shows easily from the Internet. There was once a time when all movies were stored on physical Blu-ray or DVD discs, but the digital world has change a lot.
How to Backup Blu-ray to (External) Hard Drive on Mac & PC