You might also want to consider using jewel case-sized poly cases instead. They're a pretty great replacement for the original jewel cases because they're about the same size.
I was going to get those for my PS1 games, I made a few covers for them that are available in my Box account below.
I currently have 3 DC games, and I kinda want all my Sega stuff the same height, sense they all have a color.
Red- Genesis
Orange - Dreamcast
Yellow - 32X
Green - Maybe Master System
Blue - Sega CD
Purple - Game Gear
White - Saturn
Black - Maybe Master System
If I get more DC games, I may switch to Poly Case, I like retail covers, and do not like how DVD cases stretch the art.
Anything is better than jewel cases.