> Only two years after the introduction of the original PlayStation, the DVD Forum had introduced the DVD-RAM standard: 2.58 GB per side of a disc in a protecti

> Only two years after the introduction of the original PlayStation, the DVD Forum had introduced the DVD-RAM standard: 2.58 GB per side of a disc in a protective caddy. The killer feature? Essentially unlimited re-writeability. Everybody always neglects to mention the predecessor format PD! The original DVD-RAM is “just” PD scaled up. 650MB× 4 = 2600MB https://en.wikipedia.org/wiki/Phase-change_Dual https://en.wikipedia.org/wiki/Phase-change_Dual