Repository: yt-dlp
Issue: Bandai Channel no longer available for download due to specification changes.
Labels: DRM,site-bug

### DO NOT REMOVE OR SKIP THE ISSUE TEMPLATE

- [X] I understand that I will be **blocked** if I *intentionally* remove or skip any mandatory\* field

### Checklist

- [X] I'm reporting that yt-dlp is broken on a **supported** site
- [X] I've verified that I have **updated yt-dlp to nightly or master** ([update instructions](https://github.com/yt-dlp/yt-dlp#update-channels))
- [X] I've checked that all provided URLs are playable in a browser with the same IP and same login details
- [X] I've checked that all URLs and arguments with special characters are [properly quoted or escaped](https://github.com/yt-dlp/yt-dlp/wiki/FAQ#video-url-contains-an-ampersand--and-im-getting-some-strange-output-1-2839-or-v-is-not-recognized-as-an-internal-or-external-command)
- [X] I've searched [known issues](https://github.com/yt-dlp/yt-dlp/issues/3766) and the [bugtracker](https://github.com/yt-dlp/yt-dlp/issues?q=) for similar issues **including closed ones**. DO NOT post duplicates
- [X] I've read the [guidelines for opening an issue](https://github.com/yt-dlp/yt-dlp/blob/master/CONTRIBUTING.md#opening-an-issue)
- [X] I've read about [sharing account credentials](https://github.com/yt-dlp/yt-dlp/blob/master/CONTRIBUTING.md#are-you-willing-to-share-account-details-if-needed) and I'm willing to share it if required

### Region

japan

### Provide a description that is worded well enough to be understood

Tried to download videos from Bandai Channel, but due to a system change between 16-21 December, videos that were previously distributed based on HLS (m3u8) are now distributed based on HDS (m4f), so it is no longer possible to retrieve videos using yt-dlp.

![image](https://github.com/yt-dlp/yt-dlp/assets/154591663/eb94acb8-931c-4ce4-8f2a-b1e594f723ae)

The attached image is a list of Bandai Channel distribution files (part of the list) after the specification change, which was confirmed using a different download tool.


### Provide verbose output that clearly demonstrates the problem

- [X] Run **your** yt-dlp command with **-vU** flag added (`yt-dlp -vU <your command line>`)
- [X] If using API, add `'verbose': True` to `YoutubeDL` params instead
- [X] Copy the WHOLE output (starting with `[debug] Command-line config`) and insert it below

### Complete Verbose Output

```shell
[debug] Command-line config: ['-vU', 'https://www.b-ch.com/titles/8269/011']
[debug] Encodings: locale cp932, fs utf-8, pref cp932, out utf-8, error utf-8, screen utf-8
[debug] yt-dlp version stable@2023.11.16 from yt-dlp/yt-dlp [24f827875] (win_exe)
[debug] Python 3.8.10 (CPython AMD64 64bit) - Windows-10-10.0.19045-SP0 (OpenSSL 1.1.1k  25 Mar 2021)
[debug] exe versions: ffmpeg N-72383-g7206b94 (needs_adtstoasc), ffprobe 2023-05-08-git-2d43c23b81-full_build-www.gyan.dev
[debug] Optional libraries: Cryptodome-3.19.0, brotli-1.1.0, certifi-2023.07.22, mutagen-1.47.0, requests-2.31.0, sqlite3-3.35.5, urllib3-2.1.0, websockets-12.0
[debug] Proxy map: {}
[debug] Request Handlers: urllib, requests
[debug] Loaded 1901 extractors
[debug] Fetching release info: https://api.github.com/repos/yt-dlp/yt-dlp/releases/latest
Latest version: stable@2023.11.16 from yt-dlp/yt-dlp
yt-dlp is up to date (stable@2023.11.16 from yt-dlp/yt-dlp)
[bandaichannel] Extracting URL: https://www.b-ch.com/titles/8269/011
[bandaichannel] 8269/011: Downloading webpage
ERROR: [bandaichannel] 8269/011: Unable to extract player; please report this issue on  https://github.com/yt-dlp/yt-dlp/issues?q= , filling out the appropriate issue template. Confirm you are on the latest version using  yt-dlp -U
  File "yt_dlp\extractor\common.py", line 715, in extract
  File "yt_dlp\extractor\bandaichannel.py", line 28, in _real_extract
  File "yt_dlp\extractor\common.py", line 1263, in _search_regex
```