It’s a clipshow, but it’s an amusing clipshow.
TV Asahi’s been doing some weird stuff with their audio stream for a couple weeks now, this one has finally been bad enough to cause playback problems on bad software/hardware instead of just frustrating aegisub. These files have the audio stream recompressed by the iTunes AAC codec, so the quality isn’t quite as high as the usual, but hopefully it’s not perceptible. If you’re using one of the playback methods that means the v1s didn’t work, of course, the quality is actually infinitely higher, in that you should actually have audio at all. So there’s that I guess.
Both zips contain xdelta3.exe, since I have a feeling more people will want to update their v1s than regularly download the raw ahead of final release.