Source: JPN Blu-ray (https://nyaa.si/view/1416777)
Video: CRF 14 704x540 10bit. (OP/ED zones with CRF 17)
Audio: JAP 2.0 AAC (Japanese FLAC available in subfolder)
Subs: Anime-Eternal [A-Et] (DVD R1 translation)
No English audio on the Blu-Ray, but if anyone wants give an attempt to sync English audio from DVD R1: https://anonfiles.com/r8N2Obkaz5/master_keaton_dvdr1_eng_audio_7z