Whether we’re talking about CDs, DVDs, Blu-rays, or 4K UHD discs, one thing is the same across the board: they all share a common physical size. A standard, mainstream disc measures in at 4.7 inches (120mm) in diameter, with a thickness level of 0.05 inches (1.2mm).
This 4.7-inch market domination has long been the case, but optical discs themselves can and have been designed in a wide variety of alternative sizes throughout history. For example, LaserDisc has a diameter of 12 inches (30 centimeters), MiniDisc’s diameter is 2.5 inches (64mm), and UMD is roughly 2.4 inches (60mm).
There also exists a standardized mini optical disc size format that comes in at 3.15 inches (80mm). Available in mini CD, mini DVD, and mini Blu-ray disc flavors, these small-yet-mighty discs are often overlooked when compared to their full-sized counterparts.
Smaller is better
Cuter, sleeker, and character-filled
With smaller optical disc surface areas to work with, mini CDs, mini DVDs, and mini Blu-ray discs hold less storage capacity than their larger relatives. This naturally puts them at a disadvantage from a technical standpoint, with them being less capable at holding large amounts of digital data.
While the realist in me is all too aware of this drawback, the fact of the matter is that I’m a lover of all miniature technologies, compromises and all. I love compact smartphones, tablets, and laptops, even though it means I’m sacrificing battery life (and oftentimes) on specifications, and the same principle applies here.
Interestingly, even though mini-style discs are incredibly uncommon in 2026, most modern tray-loading players are compatible with mini discs thanks to them featuring a smaller inner circle molded right into the tray. On the other hand, slot-loaded mechanisms generally don’t work with mini discs, which is an interesting footnote (the Nintendo Wii is one notable exception).
The GameCube embraced miniaturization
GameCube discs were of the mini DVD variety in all but name
If you’re anything like me, you’ll probably be most familiar with the mini DVD format via its adjacent sibling: the Nintendo GameCube disc. While proprietary in nature, the GameCube’s disc media is nearly identical to mini DVD in physical size and storage capacity. A standard mini DVD has a capacity of 1.4 GB (roughly 40 minutes of standard video), which lines up well with the 1.46 GB to 1.5 GB size of a GameCube disc.
In the video game world, the smaller disc size was arguably a smart choice at the time, reducing loading times, helping to prevent piracy, and keeping manufacturing costs down. Of course, this came at the cost of total storage capacity when compared to a typical DVD (which, by contrast, fits roughly 4.7GB onto a single disc).
…the GameCube’s mini DVD-esque discs also give the console its unique charm.
Now, in retrospect, the GameCube’s petit optical discs hamstrung the console in that it put third-party developers in a bind. Games in the early 2000s were only getting bigger, and not having access to a full-sized DVD made certain video game titles difficult to port to the platform.
That being said, the GameCube’s mini DVD-esque discs also give the console its unique charm. There’s something so fun and lovable about the game format, with its cute proportions and its overall compactness. No other mainstream home video game console has used miniature optical discs of this caliber, and I love the GameCube — and mini discs more broadly — all the more for it.
