Thanks!

I have several questions: 1. Where is the 12.5 episode? 2. Why the strange resolution of 900p instead of 1080p or 720p? 3. Is this a real human translation or a machine translation like the 4chan subs we did have already.

1. in purgatory for now 2. The original Hentatsu shorts were animated in 720p, while the newer ones were done in 900p, I descaled the video to the res of the new ones 3. These are proper(ish) subs, a real human translation

1. Well, that episode is mostly a recap, but it would be very nice to get it for completeness sake. 2. I am of the philosophy of "every time a video is re-encoded it will lost data and quality, so do not retouch it more if possible", but I will not attack you for that. Still, it would be nice if you could explain how you "deduced" the resolutions for both versions. 3. They being proper subs mean they are welcome.

As for determining at what resolution something is produced at, you descale it to a resolution, then scale it back up, and check the relative error rate compared to the original image. Rinse and repeat for many resolutions until you find one with a very low error rate, which looks like this:  As for losing quality, that's very true if you're just tossing it through ffmpeg and getting whatever it spits out, but if you're careful and know what you're doing you can end up with something of roughly equal perceptual quality while dramatically shrinking the size. This release for instance is only 8% the size of the source files on the Blu-ray. And with filtering you can oftentimes improve the visual quality over what's available on disc, which is especially common for anime. [An example](https://slow.pics/c/itDBmwKF)

GJ!!!

thank you