Table of Contents

Part 1: What is NHK BS4K and NHK BS8K?
Part 2: How to record NHK BS4K and NHK BS8K channel program?
Part 3: Rip Recorded NHK BS4K or BS8K disc to MP4?
Part 4: Extension: can you copy recorded NHK BS4K and NHK BS8K Discs?
Part 5: Wrap up


4K and 8K video over broadcast is the next big step in the entertainment industry. 4K televisions sets are already common and now 8K televisions are also available for you to buy. But where are the broadcasters to provide you with the content in this quality?


What is NHK BS4K and NHK BS8K?


NHK Corporation of Japan is the first broadcasting company which has taken the lead in broadcasting 4K and 8K content. NHK BS4K and NHK BS8K are the channels of NHK, the Government-owned broadcasting station of Japan. The channels are broadcast over satellite links.


NHK BS4K and its sister channel NHK BS8K have been running since 1st December 2020. With NHK BS8K channel, NHK became the first broadcaster to broadcast in 8K quality. To be able to watch content on these channels, you need to have specialized equipment to enjoy the 4K or 8K quality. Also, if you plan to record and burn the broadcast from the NHK BS4K and NHK BS8K channels, you will need special software capable of handling such HD content.




NHK BS4K channel started broadcasting on 1st December 2018. The transmission of this channel was preceded by replacement of all reception equipment to be able to handle 3.2GHZ frequency. It includes new satellite antennas (or a new LNB), and new boosters, distributors, cabling, and more. NHK BS4K channel broadcasts for 18 hours per day, between 6:00 and 24:00.




The BS8K channel launched with much fanfare with a major target being the 2020 Tokyo Olympics broadcast. However, while the Olympics didn’t happen, the channel still broadcasts a lot of entertainment and education content. It broadcasts for about 12 hours per day, from 10:00 to 22:10.


How to Record NHK BS4K and NHK BS8K channel program?


4K recorders can be used to record content from NHK BS4k or NHK BS8K channels. These recorders come in some 4K smart TVs as well as in some of the setup boxes used to broadcast these channels.



1. Smart TVs with Recording functionality


There are a few manufacturers currently out of Japan that manufacture 4k or 8k televisions. In Japan, most of such televisions are manufactured by Sharp, and some of them come with recording functionality as well. So if you have such a facility, you can use it at no extra cost to record programs from the BS4K channel.


2. Sumitomo Cable Plus STB-2


Sumitomo Cable is a setup box for televisions and supports NHK BS4K channel. You can simultaneously record two programs on it while one is being played. This setup box supports Google Assistant which you can use to trigger voice commands. The best thing about this is that it supports NHK BS4K channel since it can receive 4K TLV streams transmitted in single 256QAM or multiple 64QAM.


3. DVR Recorders for TV


Many companies make good DVRs. They come with a variety of features depending on the manufacturer. For instance, most of the DVRs can help you record shows from NHK BS4K channels without actually watching it. You can record multiple shows, some offer the capability to skip advertisements in between the short and more.


Rip Recorded NHK BS4K or BS8K disc to MP4?


Stage 1: Recording NHK BS4K and NHK BS8K Program With 4k Recorder


NHK BS4K channel and its sister channel - BS8K broadcast a lot of entertaining programs. Not everybody can catch those programs when they broadcast, but that doesn’t mean you have to keep missing them. You can use any one of the recording devices mentioned above like a Smart TV with 4k recording capabilities, a setup box with a 4k BS4K recorder or a DVR which you can use not just for BS4K recording but for other recordings as well. A DVR will offer an easy way to capture the 4k or 8k movie directly to a disc.


If you are using a computer to play content from BS4K channel, then you can use a screen recorder of the highest quality to do BS4K recording. It might not give you the best output, but it should still get you a sufficiently high quality.


Stage 2: Copy Recorded BS4K or BS8K disc with Software to A Blank DVD, ISO, Folder


Once your BS4K recording is done, you may want to transfer it to a blank DVD or a DVD folder. To do so, you will need software that can convert your media to DVD format. But before that, you will need to convert your BS4K recording to a lower size file for it to fit on a DVD.

To do all this, it makes sense to look for a software which can handle all these tasks. From optimizing the file size for a DVD, changing the format if required and then burning the BS8K recording or BS4K recording to a DVD. The best application to do so is DVDFab 4K Recorder Ripper.

This tool can handle recordings made by most of the BS4K recorders. You can use it to convert the recordings to a format that is compatible with the common media players in the market. If you use this application, you don’t even need to search for a BDAV ripping free software since DVDFab 4K Recorder Ripper can decrypt BDAV files. The decrypted files can be easily backed up on a blank disc or your local computer storage.

Let’s look at some of the feature highlights of DVDFab 4K Recorder Ripper:


Check out more:  Best BDAV Copy or Ripping Software to Copy or Rip Recorded BS4K and BS8K Discs


Support for 4K BDAV Discs from Major 4k Recorders


The market is now rich with 4K Ultra HD Blu-ray discs from many different manufacturers. Depending on their requirement, the formats vary from manufacturer to manufacturer and sometimes even from the same manufacturer like .m2ts format from Sharp devices, the mmts format from Panasonic devices.


With DVDFab 4K Recorder Ripper you don’t need to worry about the specification of your disk. You can use this ripping tool to rip the media files from these disks or a BS4K recorder.


Convert 4K BDAV Blu-rays to your preferred format


MP4 and MKV formats are the most widely supported formats which you can play over handheld devices, laptops, gaming consoles and desktops. While ripping the disc itself you can select the output format that you want.


Lossless video and metadata ripping


When you are ripping 4K BDAV format Blu-ray content, you would not want to lose any high quality of the original content. DVDFab 4K Recorder Ripper preserves the original HLG video quality, aka hybrid log-gamma high dynamic range that is the latest in HDR standard. This technology is used by all major 4k broadcasting channels like NHK, BBC and others.


And not to forget, it preserves all the 4k Blu-ray metadata information as well in the ripped output.


Hardware Acceleration during Ripping


You not only get lossless video quality with DVDFab 4K Recorder Ripper but to make sure that the processing speed is the best in class among its competitors, this tool supports Hardware Acceleration. It supports hardware acceleration offered by call GPU manufacturers like from NVIDIA's CUDA, AMD APP, and Intel's IQS, etc.


Here are the officially supported BS4K recorders in the market but you should be able to use this application with most of the other BS4K recorders as well.


BS4K recorders


Below are the steps you need to follow to rip BS8K recording to an MP4 or MKV file format:


Step 1. Load your Media Disk


After you have installed DVDFab 4K Recorder Ripper, insert the disc to automatically load the media on DVDFab interface. If it is not automatically loaded, you can also drag and drop the source media file onto its interface.


media disk


Step 2. Choose Output Profile


From the top menu select Ripper option. In front of the media file you have added, you will see a Profile dropdown which you need to use to choose an MP4 or MKV profile.


output Profile


Step 3. Generate Output


Select the output directory for the ripper video file and click on the Start button to start generating the output file.


Extension: can you copy recorded NHK BS4K and NHK BS8K Discs?


You can use DVDFab 12 to not only rip but copy your NHK BS48 and NHK BS8K discs to other discs or create an ISO of it. The DVDFab 4K Recorder Copy utility is for this purpose only. It works as a free BDAV Copy software and decrypts and creates a backup of your NHK BS8K and NHK BS4K discs to blank discs or an HDD.


Just like DVDFab 4K Recorder Ripper, DVDFab 4K Recorder Copy is a great product with similar features. You can use it when you don’t want to change the format of your media file and just want to create backups. You get the same Hardware Acceleration and stability of DVDFab 12 application.


You can also use it with 4K camcorders from companies like Panasonic and Sony to turn .m2ts videos to ISO or video folders.




To use it:


  1. Load the disc in your UHD drive.

  2. Launch the software and wait for the disk media to load on the DVDFab application. You can also drag and drop the files.

  3. Select the Copy Module from the top menu and then click on the Clone/Burn option.

  4. Do any changes in the Advanced Settings section if required.

  5. Select the output directory for the file from Save to section at the bottom. In front of the directory path, there is a button with which you can choose if you want to burn a disc or create an ISO/movie folder.

  6. Click on the Start button to start creating a copy of your BS4K recording.


Wrap up


You need a dedicated software to rip or copy 4K media files. UHD content generated from NHK BS4K and NHK BS8K cannot be handled by a free BDAV ripping software. DVDFab 12 comes with premium 4K ripping and copying utilities packed in one software. It takes care of any encryption and lets you generate output as you want - in the same format (copying) or a modified file format (ripping).