These are Anime on Demand WEB-DLs from before it merged with Crunchyroll.
You can find these same episodes, with the same filtering on German CR, except they're bloated re-encodes of the videos in this torrent (with some detail loss).
Dub-only, with forced subs.
To anyone looking to use these in an encode:
The encoder at AoD added a layer of static grain, which can be isolated and subtracted from the video.
Every episode has a different seed for the grain, but it stays consistent throughout the entire episode.
These also have a bunch of blending caused by lazy deinterlacing. Some rainbowing.
AoD will be missed.