just type "final fantasy ix fandub" into YouTube and you'll see the playlist with 64 videos and the fact yt deleted the last episode with no backups can be found in a reply to what is showing up for me as the top comment in the second to last episode
Final Fantasy IX is my favorite Final Fantasy so it's interesting to see there was a fandub. I was looking through the comments on episode 21.4 and several comments mention that this episode was deleted by youtube, there are also several comments of people saying that it was never completed. One comment that caught my eye is from avengefulgirl95, she says she was one of the voice actresses in the finale and that "youtube deleted the video and there was no backup copy." That's really shocking to me considering how much I've heard goes into making fan dubs, each voice actor would surely have some backups of their own recorded lines right? I guess it's possible that since this was a fan project backing up their work wasn't a high priority for them, it's understandable I guess.