Additionally, many other sports titles and other data intensive titles use anywhere from 40 blocks to well over 100. EA even had to dumb down the franchise mode in the GameCube version of Madden because the save data size would have exceeded the MM59's maximum capacity. How quickly it became apparent that the Memory Card 59 was an unaccommodating solution. That said, you're only going to fit 3-6 game saves at best on each card.
On the average GameCube titles use anywhere from as little as four blocks to 20 blocks. The official Memory Card 59 from Nintendo holds - as you might guess - 59 blocks of data saves. At the time we questioned Nintendo's motives, but figured that the company knew what it was doing.