(1.2 Mb) May 2026

Upgrading to the 1.2 MB disk was a massive leap forward from the previous double-density disks, which only held 360 KB.

Before the smaller, hard-shelled 3.5-inch disks took over, these flexible 5.25-inch disks were the primary way software was distributed and files were saved. (1.2 MB)

At standard MP3 compression, 1.2 MB yields only about 1 minute of low-quality audio or roughly 15 to 20 seconds of high-quality music. Upgrading to the 1