Video: H.265
Audio: AAC
Recommended Player: https://mpc-hc.org/downloads/
Sources: [lleur] One Punch Man TV+OVA (BD 1920x1080 x264-10bit QAAC-TVBR127 PGS[JP,EN]) (25.23 GB)
Notes:
I am unable to upload the first two OVAs here on piratebay so i'll just give you the magnet links:
OVA1
OVA2