I have had three disks fail me. I have never lost a file. Even when my NAS failed, I was able to replace it and restore my HDs with backups. I think backed up files are definitely more reliable than optical discs, and much more convenient.Many of us don't have Atmos, nor do we want it. Yet we DO want 5.1. I'm also not a fan of downloads. I prefer a medium I can hold in my hand, knowing it's always going to be there. Downloads are fine for those who want them, but if their computers, or media players crash, there's the potential of losing a favorite recording. Sure, you can back up your system, but what if the files become corrupted? With a properly handled BD-A, or SACD, you have it at your fingertips.