I wish I saw this guide before messing with my anime collection. I mostly did three things when messing with the video files:
- Resize from 1080p to 720p. I actually tested it, and it reduced file sizes quite a bit.
- Rencode (if necessary) into H.265/HEVC.
- Remove non-Japanese audio tracks, and most subtitle tracks (only full subs in IT/PT/EN left).
…granted the third one wasn’t to reduce size, it was because it’s annoying when VLC or some other software picks the wrong sub track.
For comparison:

Freshly downloaded, 1080p. 314MiB.
Resized file, 720p. 91MiB.I feel like I reached a decent compromise, specially given my really poor sight: I can barely notice the difference, but now I can cram ~four times more anime episodes into my hard disk. But if I knew about this guide, it would be probably better, and I would not have needed so much trial-and-error to reach decent results.
(And yes, I had to use the same scene as the guide for my own example. Fullmetal Alchemist: Brotherhood, ep02, around 8:15.)


