**Description** The video is from Beatrice-Raws. They applied debanding and possibly other magic. The original 2.0 audio is from AK-Submarines, but I resampled them from 24bit to 16bit with soxr using low shibata dithering. This cut the audio file size in half. There was no point in using the remastered 5.1 audio because they just copied the original stereo audio and left the remaining channels silent. The main subs are the improved /ak/ Submarines subs from 2019. Also included are Hiryuu subs for the first two episodes. The chapters are from AK-Submarines. This is a v2 release because I initially used the wrong video files. They combined the OVAs with the Tank Courses, resulting in longer episodes with no additional audio or subs. **Info** Video: 1920x1080p x264 10-bit Audio: FLAC 2.0 Sub 1: /ak/ Submarines (improved, great signs) Sub 2: Hiryuu (only OVA 01 and OVA 02) Chapters: yes **Tech Note** For those questioning the audio: increasing or decreasing the bit depth does not effect fidelity, it only effects the dynamic range by raising or lowering the noise floor. At 16 bit with no dithering it produces a 96db range and a noise floor that is already lower than what is audible. With shaped dithering, like what I applied, it increases the range in the audible frequencies to around 120db. For reference, that’s the loudness of a chainsaw. I highly doubt anyone is going to be listening that loud. 24bit non-dithered audio has a range of 144db, loud enough to immediately cause permanent hearing loss. That’s putting aside the fact that the highest end hardware can only output at around a 120db (20bit) range due to the limitations of integrated circuit designs. TL;DR 24bit audio is pure bloat.