The Legend of Zelda: Collector's Edition is a unique collection of Zelda games that was packaged with the GameCube. It contains ports of The Legend of Zelda, Zelda II: The Adventure of Link, Ocarina of Time, and Majora's Mask, a demo of Wind Waker which is specifically a few minutes to work through Dragonroost Temple, and a short video that serves as a retrospective for the series up to that point. It's nice to be able to play these on a GameCube, but the Ocarina of Time port is fully censored (I will explain) and the Majora's Mask port is rubbish. Majora's Mask has an ungodly horrible framerate which is how I imagine the game runs on an N64 if you don't have the memory expansion installed in it. Ocarina of Time has had several versions throughout the course of its existence, each making slight changes. The second version of Ocarina of Time removed the Islamic chant from the Fire Temple's music and a third version made Ganondorf's blood green. The Collector's Edition version has those same changes, the redesigned Gerudo emblem, and removed the blood that was seen on the floor in different places under the well and in the Shadow Temple. I'm lucky enough in that my copy of Ocarina of Time is the first version, Islamic chant and all.
Anyway, it's good and is a great means to play these Zelda games if you're unfazed by the censorship of Ocarina of Time. You are better off playing Majora's Mask elsewhere, however.