Well, both have their merits. Although Blu-Ray has a higher capacity and more movies being ported to the format, it can only be used in Sony-produced devices, and we know how that went before. HD-DVD, being made by Microsoft, has the potential to reach a larger audience, but will not be used for games. So, I'll go with 8-Track.
Genesis and Super NES are both '90s game systems, so they can play each other's cartridges, right?