Some tips on recoding videos(h264,h265, bik, bk2)

[elit]

Here is another example, as I am repacking FFXII I recoded webm vids in it. I used 768k bitrate for this, its vp8 format.
Default:
default.jpg
Recoded:
recode.jpg

Now the thing is, how much space did I saved? Original videos dir was: 10gb. Recoded: 625mb. Dont forget that it is blurrier also because of lowered resolution to 640x360.
EDIT:
Here is same recoded again but with original resolution
recoded2.png

Less blurry but some pixelation already visible. 360p is better. Note that while on these pics blur may look too big, in motion this is much less of problem and video appear very solid in perception.