Yes, and so was everything else. It was the standard. With the anime boom, they eventually reduced it to 7, then 6. 7 is now unheard of, and now it's not unusual to see up to 9-13 episodes on a single release of a new series, especially if it's longer. And the incredibly niche stuff can have up to 26 episodes per set. While the R1 industry is in a bit of a rough spot right now, it's a really great time for us buy-fags.