The 64DD (also known as the 64 Disk Drive or the 64 Dynamic Drive) was a Japan-exclusive add-on for the Nintendo 64 co-developed by Nintendo and Alps Electric. The 64DD used magnetic disks, offered large amounts of storage compared to most cartridges, and was plugged into the bottom of the console.

Plans were made to release the Disk Drive elsewhere, though after failing to make an impression in Japan the plans were cut. Its failure could perhaps be attributed to the lack of high-profile games for the hardware, its release late in the console's life, and the multitude of unincluded but previously announced features. Some games previously announced with Disk Drive support were instead released without such support or were moved to competing consoles.


The 64DD used magnetic disks instead of cartridges to compete against the PlayStation CD-ROM. The disks could store up to 64MB.


During the launch of the Nintendo 64DD, Nintendo launched a subscription called RANDnetDD, an online service where users could email, chat, play games online, and read a special Nintendo newsletter. The service was discontinued in 2001 mainly because of the GameCube's Release.



Only ten games were released for the add-on. Some games that were being developed for the 64DD wound up being developed for the regular Nintendo 64 instead.