I hope I can explain this right. Funi started releasing the Voyages first, and they had about 13 episodes in each, and then like a year to a year-and-a-half ago they started selling Collections from the beginning which usually have about 26 episodes, or essentially bundles 2 Voyages. Collections 1-8 is the same as Voyages 1-16. So it's cheaper to buy the Collections if you're starting out now. It just might be a bit before they release Collection 9 since they pretty much caught up to the Voyages.