Title: The 4.7 GB Milestone: How the DVD Redefined the Digital Archive
: Explain the transition from the red lasers used in CDs to the more precise optics that allowed for tighter data packing on DVDs. (4.7 GB)
: Briefly mention how later "blue/violet" laser technologies (Blu-ray) further compressed data to reach 25 GB+. Title: The 4
: The adoption of the 4.7 GB standard was not merely a technical upgrade; it was the catalyst that enabled the democratization of high-quality video and the birth of personal digital archiving. II. The Physics of the Pit: How 4.7 GB was Achieved (4.7 GB)