Cd storage / backup


Suggestions for backing up over 500 CD's that I own.
Love to sell them and free up alot of space in my home.
Would like to build as a library, easy look up, easy access.
Prefer to both play and burn from the device.
Idea would be to have this accessible via wifi in my home to play thru multiple systems.
Any thoughts??
bsimon
2.5 K bit perfectly ripped CD into NAIM Uniti-Serve
Synology NAS with 2 x 4 TB drives in a raid 1 config
usb hard drive to back the raid up