Problems with My External HDD and Backing Up My MacBook Pro

[wwaldmanfan]

Sorry, I know nothing about Sonos. I don't trust automated backup software like CCC or Time Machine. I've attempted to use SuperDuper! and found it unreliable.

Have you tried backing up by simply dragging and dropping the files between libraries from the FInder? I've had Macs for decades, and I always do it that way. I periodically duplicate my entire 2TB library overnight without losing a single byte of data. Since the computer does the heavy lifting, it is simpler to just backup up the entire thing from scratch than try to constantly do confusing updates.

I would advise to never delete the original master, especially if it is in a lossless, uncompressed format. Doing that to save HD space, which is so cheap, seems foolish. There's bound to be some obscure stuff in there that you'll never be able to replace.