CDs because they take up less space and actually have decent sound quality but u cant display cds like vinyl....... https://ak1.ostkcdn.com/images/products/is/images/direct/45fad50ead2507fa782f34a69a8cd93b091bd7cf/Walnut-Picture-Ledge%2C-Vinyl-Display-Shelf%2C-Wood-Floating-Shelf-%28Set-of-2%29.jpg...