Now, isn't the Disk Writer Disk Holder just the coolest little thing
you've ever seen? This is a plastic Famicom Disk
Writer case for holding your Famicom Disk System
games. It's shaped like the old Disk Writers, which
were used for kids who would play a game for about a
few months, and for a small fee, could get the game
overwritten with a different one. This is how games
like Metroid, Legend of Zelda, and
All Night Nippon Super Mario Bros. got so
popular.

A mini of the real thing.

It can hold 15 FDS disks in their complete cases.
The case can fit quite a few games in it.
Personally, I'd use it for the rarer Famicom Disk
System titles out there. The price that this item
sells for varies on eBay, so I can't give an
accurate price, though this will cost a hefty ton of
pocket change.

The disk holder inside its original packaging.

One side of the box.

Another side of the box.