I recently migrated my disc collection from cases. Initially I got binder pages like you linked, but I returned them and got paper sleeves instead, because (1) paper cases are cheaper and more compact, and (2) when I put discs in binders, they rub against the (admittedly soft) backing material, whereas when I put them in paper sleeves, I naturally hold the sleeve such that the discs don’t rub the sleeve when being inserted, and that seems a bit safer.
I do still use a binder for the papers from the cases.