Shockwave was Flash's larger brother, feature wise. Shockwave stuff could contain Flash files, but Shockwave could do things Flash couldn't, or could do them ea

Shockwave was Flash's larger brother, feature wise. Shockwave stuff could contain Flash files, but Shockwave could do things Flash couldn't, or could do them earlier. (And if I remember correctly Shockwave came first, and when Macromedia aquired it they then build Flash)