The Making Of

How a 1995 CD‑ROM
came back to life

One disc, a decompressor, and a swarm of robots reading an undersea encyclopedia.

Before the whole ocean was a search away, it lived on a CD‑ROM. Microsoft Oceans (1995) was a multimedia tour of the sea — reefs and the crushing abyss, whales and jellyfish, tides and hurricanes, and the explorers who first charted the water. You clicked, you read, you watched grainy little films of creatures most kids would never see in person, and the deep felt a little less far away.

This is that disc, brought back modern and open, so any kid with a browser can dive in again. Here's how a three‑decade‑old CD‑ROM became the website you're using right now.

A time capsule on a disc

It started with a single file: the original CD‑ROM image, preserved on the Internet Archive, frozen exactly as it shipped in 1995. Mounting it revealed a tidy little world — one folder per entry, each named by a short code like REEF (coral reefs), ABYS (the abyss), and ARCT (the Arctic Ocean) — and ninety‑three of them, spanning four themes: sea life, habitats, ocean science, and seas & people. Inside were thousands of images, films, and narrations, all tied together by a master database the original program used to know what linked to what.

Cracking it open

The films were easy — an ancient codec called Microsoft Video 1 that modern tools convert in a blink. The narration was plain audio, still clear after thirty years. But the images refused to open. Their files didn't start with the usual picture header; they started with the letters SZDD — Microsoft's own early‑'90s compression, a way of squeezing files onto disks back when every megabyte counted. Nothing on a modern Mac could read it, so the fix was a tiny decompressor, about forty lines long, that understood the old format and unpacked each image back into a real picture.

The same little decompressor woke all three of these discs. Once it ran, the reefs and the open water came back pixel‑perfect — thirty‑one years asleep, and they woke up flawless.

The twist: text made of pixels

Unpacking the first screen revealed the project's central puzzle. It wasn't just a photo — it was the whole page: the title, the article, the little labels you click. All of it had been painted into a single image. The words weren't stored as words anywhere; they were pixels. A faithful copy would be frozen forever — fixed in size, impossible to translate, invisible to screen readers, unsearchable. Not exactly "for any kid." So the project took a different path.

One disc, two faces

Instead of choosing between old and new, this rebuild offers both — from the same restored material:

A toggle at the top of every page flips between the two. But making the Modern version meant reading the text back out of those flattened images — word for word, across all ninety‑three entries — and turning it into structured data.

187 robots read an undersea encyclopedia

Six hundred screens of text, transcribed by hand, would have taken weeks. So the work went to a swarm of AI agents working in parallel. Each entry got its own agent that looked at its screens the way a person would — the main page, the sub‑topics, the fast‑facts box — and transcribed every word, sorting it into a clean data model: name, intro, facts, captions, and where each clickable hotspot sat. Then a second agent re‑read the same screens to catch any slip the first one made. Ninety‑three entries, checked twice.

Keeping it honest

When all ninety‑three were done, one final agent read the entire collection at once, acting as an editor — making sure every entry used the same fact labels and the same voice, with no duplicates or stray inconsistencies left behind from the per‑entry passes. Faithfulness to the words on the disc, and to the facts behind them, was the whole point: nothing here is invented or rewritten, only freed.

Part of a fleet of three

Oceans didn't get rebuilt on its own. The same toolkit had already woken Microsoft Dangerous Creatures (1994) and would go on to wake Microsoft Dinosaurs (1993) — three sister sites from the same shelf of mid‑'90s Microsoft Home discs, sharing one decompressor, one agent pipeline, and one look. You can hop between them from the foot of any home page.

The same sea, in Spanish

Oceans had a Spanish twin: Océanos de Microsoft, the localized retail disc, preserved just like the English one. So the Spanish here isn't a translation we typed on top — it's the real localized disc, run through the very same decompressor and agent swarm: authentic Spanish screens, Spanish narration, Spanish video. The loveliest detail is in the guided tours, where the hosts were re‑cast for Spanish‑speaking kids: Kim became Carmen, Curtis became Carlos, and the wildlife narrator Eli became Teodoro Zúñiga — re‑voiced by Spanish actors, not subtitled. Only Zarka, the visitor from another world, kept her name. Switch between editions with the EN · ES toggle on any page.

Six guides, eighteen tours, and a game

The encyclopedia is only half of it. Oceans built its guided tours around six characters — a lone voyager, an old‑time sailor, a sea rescuer, a scuba diver, an oceanographer, and that visitor from another world — each with three narrated tours of their own, eighteen in all, playing the disc's original narration in whichever language you've chosen. And there's a game built from the entries' own clues:

What you're looking at

Everything here was reconstructed from those discs: a forty‑line decompressor woke the images, a video converter restored the films, and a swarm of agents liberated the words — in English and Spanish alike. The result is the ocean a kid explored in 1995 — faithful when you want nostalgia, modern when you want to learn. Browse by ocean zone or sea, take one of six character‑led guided tours, or test yourself with Sea Riddles — in either language.