When I got into SACD/DVD-A back in 2001 I bought a load of both cases as I often found my discs, which were mostly imports then, turned up with broken cases.
Seeing lots peoples posts on broken cases and the difficulty in finding them I got curious and found these SACD sources (all different from the original version as far as I can tell)
In the USA: Super Jewel Box SACD Case (New-Style) (5-Pack)
& -SACD Jewel Case-CD Care|Acoustic Sounds with the caveat
In the UK: SACD super jewel case - Retro Style Media
I couldn't find anywhere which are selling the DVD-Audio cases of yester year
Seeing lots peoples posts on broken cases and the difficulty in finding them I got curious and found these SACD sources (all different from the original version as far as I can tell)
In the USA: Super Jewel Box SACD Case (New-Style) (5-Pack)
& -SACD Jewel Case-CD Care|Acoustic Sounds with the caveat
In the UK: SACD super jewel case - Retro Style Media
I couldn't find anywhere which are selling the DVD-Audio cases of yester year