Help !

I can see the appeal of devices like the Vault, but if you rip all your CD's to one and then dispose of the physical media, you need to make sure you back it up, otherwise if the Vault goes bad or its hard drive dies, all of your music is gone.  From what I've read, it is possible to backup to an external hard drive, however it appears the music is stored in a proprietary format:

"The ext4 storage format is the same format that the Vault uses to store your data. It will not appear on most conventional Mac and Windows PC's."

You can also use the Vault as a NAS (Network Attached Storage) device and have your files show up on your computer -  https://support1.bluesound.com/hc/en-us/articles/200387457-Backing-Up-Your-Vault

Ideally, you should have two backups of all your important files - one on-site, and one off-site in case something happens to your home and both backup copies are lost (fire, flood, theft, etc.).

I haven't ripped all of my CD's, but I've been slowly copying them all to my computer.  I use foobar2000 to rip them, it has good tools for checking accuracy and a couple of lookup databases to automagically name the files.  I copy the files to an external hard drive that is automatically backed up daily by SyncBack and I also send a copy to the cloud with my online backup.

big_greg 7-23-2019
@onhwy61 What is this "legal issue" you mentioned? I think you may have gotten some bad information.

The copyright-related legal issue Onhwy61 correctly referred to, that may and arguably will come into play if CDs are copied to a hard drive or other storage medium and then are given away (for example to a library), was discussed (and debated) in a lengthy series of posts in the following thread, beginning with a post dated 6-12-2016 by member "lp2cd."

https://forum.audiogon.com/discussions/redbook-keeps-surprising

As the saying goes, let your conscience be your guide.

Regards,
-- Al

It is always necessary to backup the hard drive which is prone to failure.

I know many people who lost the photos stored in hard drive.

It took 100 hours to rip around 1000 CDs and I still have 1K more CDs to rip .

Thus it will be good idea to back it up.

I also plan to keep my CDs even if I finish ripping all of them.

@almarg He said "dispose of", which to me means throwing away. 

If you make a copy of a CD and give that copy away, it is most certainly copyright infringement. 

I'm not an attorney, nor do I play one on the internet.  I'm not sure what the law says about donating the original to a library for example, however they are sure to be up to snuff on what they can and cannot accept. 

Here's a good resource for general information regarding copyright as it pertains to recorded music (as well as other copyrighted material - photos, books, etc.):   https://www.riaa.com/resources-learning/about-piracy/

Thanks so much all .  Looks like Bluesound might be my best move .Since 90% of my CD's are Classical nobody would take then and when you're over 80 you don't worry about backup, if it goes it goes .