I've been considering to get in to the Blu-ray backups for a while. Is there a good guide on how to organize your files in order to split it in to multiple backup disks? And how to catalogue all your physical Discs to keep track of them?

I remember about 20 years ago my friend had a huge catalogue of 100s of disks with media(anime) and he used some kind of application to keep track of where each file is located across 100s of discs in his collection. I assume that software must have improved for that sort of a thing?