[BlackRabbit] Nadia - The Secret of Blue Water (1990) - S01 [Bluray-1080p][Opus 2.0][Dual Audio][AV1]
L2 - Small-scale Fansubs Batch BD - Mini AV1
L2 - Small-scale Fansubs Batch BD - Mini AV1
Mediainfo
Sample taken from: Nadia - The Secret of Blue Water (1990) - S01E01 - Girl at the Eiffel Tower [Bluray-1080p][Opus 2.0][AV1]-BlackRabbit.mkv
Release Information
| Field | Value |
|---|---|
| File | Nadia - The Secret of Blue Water (1990) - S01E01 - Girl at the Eiffel Tower [Bluray-1080p][Opus 2.0][AV1]-BlackRabbit.mkv |
| Source | Headpatter |
| File Size | 378 MiB |
| Duration | 25 min 3 s |
| Overall Bitrate | 2 108 kb/s |
| Frame Rate | 23.976 FPS |
| Rabbit Encoder | v6.7.0 |
| Language Detector | v2.5.3 |
Rabbit Encoder Settings
| Setting | Value |
|---|---|
| Speed | Slower |
| Dedupe subtitles | Yes |
| Highest audio layout only | Yes |
| No commentary audio | Yes |
| Audio languages | jpn, eng |
| Raw | RE1|c~cp=--photon-noise 15000,sp=sr,crp=a,cl=0.3,dd=1,kc=1,rc=1|al~v=jpn+eng|sm~sp=f,tb=s |
Video
| Property | Value |
|---|---|
| Codec | AV1 |
| Resolution | 1440×1080 |
| Aspect Ratio | 16:9 |
| Bitrate | 1 812 kb/s |
| Frame Rate | 23.976 (24000/1001) FPS (Constant) |
| Bit Depth | 10 bits |
| Stream Size | 325 MiB (86%) |
Audio
| # | Language | Codec | Channels | Bitrate | Sample Rate | Size | Flags |
|---|---|---|---|---|---|---|---|
| 1 | Japanese | Opus | 2 channels (L R) | 126 kb/s | 48.0 kHz | 22.6 MiB (6%) | Default |
| 2 | English | Opus | 2 channels (L R) | 115 kb/s | 48.0 kHz | 20.7 MiB (5%) | Default |
Subtitles
| # | Title | Format | Language | Flags |
|---|---|---|---|---|
| 1 | Full Subtitles [THORA] | ASS | English | Default |
| 2 | Signs & Songs [THORA] | ASS | English | Forced |
| 3 | SDH [USABD] | PGS | English | Hearing Impaired |
BlackRabbit Encodes
BlackRabbit focuses on mini encodes made for users who want to save storage space without giving up solid video and audio quality.
Our goal is simple: find the best available remux source, preferably with dual audio (Japanese + English) when possible, and encode it into:
- Video: AV1
- Audio: Opus
This makes the releases especially useful for people running automated setups such as Sonarr, where smaller file sizes can save a lot of storage over time.
Our Encoding Approach
Our releases are more than a straight AV1 + Opus re-encode. We never alter the actual content — no re-timing of dialogue, no cuts, no aggressive filtering by default — but we clean up and reorganize the tracks so every release is tidy, consistent, and behaves correctly across devices and media servers.
The core changes are:
- video is encoded to AV1
- audio is encoded to Opus
- overall file size is significantly smaller
Alongside this, we properly handle the audio and subtitle tracks (details below). The end result is a release that's effectively the same as the source, just smaller, cleaner, and better organized.
Audio Handling
Beyond re-encoding to Opus, we tidy up the audio tracks so they behave predictably:
- Smart bitrates — the Opus bitrate is chosen per channel layout (mono, stereo, 5.1, 6.1, 7.1, all the way up to 7.1.4).
- Logical ordering — tracks are sorted with Japanese first, English second, and any other languages alphabetically after that; main audio always comes before commentary and audio-description tracks.
- Deduplication — redundant tracks are removed, keeping the best source per language and channel layout (lossless preferred, then highest bitrate).
- Optional highest-layout pruning — when enabled, only the highest channel layout is kept per language.
- Optional commentary removal — when enabled, commentary audio tracks are removed.
- Correct flags — default, original, commentary, and audio-description flags are set properly.
- Sync correction — any audio delay/offset baked into the source is corrected so tracks stay in sync.
- Clean track names — messy or inconsistent track titles are cleared.
Subtitle Handling
Subtitles are kept as-is — we don't re-encode or restyle them — but we detect, label, and organize them so the right track shows up at the right time:
- Track classification — every track is identified as Full, Signs & Songs, SDH, Honorifics, Commentary, or Storyboards, including content-based detection for sources with wrong or missing labels.
- Clean, consistent names — e.g.
Full Subtitles,Signs & Songs,SDH, with the source or release group tagged where known. - Correct flags — default, forced, hearing-impaired, commentary, and original flags are set so players automatically pick the intended track.
- Logical ordering — English first, Japanese second, any other languages alphabetically after that; full subtitles before signs & songs; text-based before image-based.
- Deduplication — redundant subtitle tracks are removed.
Source Quality
Source quality is very important to us. If a better remux/source becomes available later, we may re-encode the entire season using that source and increase the version number.
If you know of a better source, please let us know in the comments.
Sonarr Compatibility
Compatibility with automated media systems, especially Sonarr, is one of our main priorities. Because of that, we try to keep file names as Sonarr-compatible as possible to make library management easier and more reliable.
Our Priority
Our main goal is to provide mini AV1 encodes for as many anime as possible while still maintaining good video and audio quality.
When strong AV1 releases from other groups are already available, we would generally recommend using those instead. BlackRabbit's focus is on helping fill the gaps by providing compact, high-quality AV1 encodes across a wide range of titles.
Optional Support
If you would like to support and help us continue releasing mini AV1 encodes, donations are appreciated but never expected.
XMR: 895pWQCwjJs24bjnkY5SuhAvwjhKtcrL9NXx1aRy7MUbbSk8w7SawbTiRipPvcmKohQNqpNWXDypmHncLSCxzUtkERNJS9h
Feedback is always welcome. If you spot a better source, naming issue, or anything else worth improving, let us know in the comments.
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Nadia: The Secret of Blue Water (1990)
S01 (01-39) Go to Series
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