User:Hp0tt012/sandbox

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DVD-RAM

Borders of hard sectors are visible on the data side of a type 2 DVD-RAM disc
Media type	Optical disc
Capacity	Version 1.0: 2.58 GB per side Version 2.0: 4.7 GB per side Version 2.1: 1.46 GB per side (8cm discs)
Block size	2 KB
Read mechanism	300–650 nm laser
Write mechanism	650 nm laser
Dimensions	12cm, 8cm
Extended from	DVD
Released	1996
Discontinued	2019