In the early to mid 90's, I was writing games for a living. We had a 2 disc game that we managed to reduce in size via in-house audio, image, and video compres

In the early to mid 90's, I was writing games for a living. We had a 2 disc game that we managed to reduce in size via in-house audio, image, and video compression down to a single disc. Our publisher felt we were too far along to drop to a single disc and remove code paths, so we ended up with a ton of duplicate content instead. There are all sorts of reasons to release with multiple discs, not all of them are obvious.