I traveled to Japan last year and get myself some Japanese adult DVDs or porn DVDs. I recently want to rip them and backup to hard drive so as to keep them safe from kids but find myself in great trouble. My DVD rippers are NOT able to rip those DVDs at all.  One crashes when I try to load it and the other give me an error while ripping. I also tried the trial versions of Tipard Mac DVD Ripper Platinum, 4Easysoft Mac DVD Ripper, 4Videosoft Mac DVD Ripper Platinum, none of them worked.

What I purchased are SNIS series named SNIS176, SNIS311, SNIS446 and SNIS493. All are recommended by the shopkeeper. All those DVDs played fine on both my Windows and Mac with the default Windows media player or Mac DVD player. But I cannot play them with VLC player with the below error message:

Your input can’t be opened
VLC is unable to open the MRL ‘dvdnav:///dev/rdisk2’. Check the log for details.

Playback failure
VLC cannot set the DVD’s title. It possibly cannot decrypt the entire disc.

vlc error playing porn dvd

I also find those DVDs different from other DVDs while I open the DVD in Finder. The whole DVD is 7.58GB on Mac but there is nothing in VIDEO_TS folder nor AUDIO_TS. The two folders are empty but with some .BUP, .IFO and .VOB files outside the two folders, right in the root of the disc. Interestingly, they each are less than 2KB. I assume this is kind of special DVD copy protection.

nothing in video ts folder

Free DVD Ripper for Special Protected Japanese Adult Porn DVDs

I have spent almost the whole week on Google to find useable program to rip SNIS series Japanese adult movies. I have tried at least 15 DVD rippers, only to find them disappoint me. I got error messages most as “failed to load this DVD”, “No Valid Source Found”, or “The DVD does not contain a valid VIDEO_TS folder.” When I am able to give up and keep them somewhere safe, I find tried the free DVD ripper MakeMKV and BINGO! It loads and rips those porn DVDs! This really impresses me as all the DVD rippers I tried are sharewares. MakeMKV is free while in beta for DVD ripping. 

MakeMKV, although free,  is designed to support bypassing all kinds of DVD copy protections and rip DVDs to multiple audio and subtitle track MKV with all meta-information and chapters preserved in just a few clicks and offers excellent output video quality with high speed for ripping. The program is available for Windows, macOS and Linux.

To be able to use MakeMKV free, you will have to come back every month to get a free MakeMKV key in my blog but you can also choose to support it for a lifetime key for just $50 and unlock the paid features for Blu-ray ripping which supports the latest Bluray protection of the latest AACS, MKB and BD+.

How to full rip Japanese Adult and Porn DVDs Free

If you have such specially encrypted DVDs from Japan, mostly adult video aka porn movies, or if this is your first time using MakeMKV, I will walk you through how to rip DVDs to MKV format with all meta-information and chapters on Mac and here I’m going to have the porn DVD SNIS176 as my example.

Step 1. Getting Ready

Insert your porn DVD to your DVD drive, download,  install and launch MakeMKV.

Step 2. Add DVD to MakeMKV for ripping

After the program for ripping SNIS176 is launched, it will automatically read the DVD drive and load the DVD to the program. If there is one more drives, you can click on the drop-down menu of source to load DVD from another drive or you can also go File-Open disc to add DVD manually. You can see here the basic DVD info and DVD drive info.

load porn dvd

Step 3. Open DVD Disc

Click the big Open DVD Disc button and the program starts analyzing INIS176 before you rip it.

Step 4. Select Source

Once the DVD is analyzed, you will see its contents as a tree structure.


For Disney DVDs with up to 99 titles, I am afraid you will have to select titles yourself as  it offers 4 or 5 titles selected for ripping, all of which are over 90 minutes. Obviously a DVD cannot be over 360 minutes long and I assume MakeMKV is not able to select the right title for ripping or it’s not sure. So it lists all possible titles and users have to make the design themselves.

But for INIS, I find them with only two titles with one main title over two hours long. This DVD is over three hours. So, this is no big trouble. In the below screenshot, you find the title has been selected for you. You can still click on it to view more details. If you don’t want audio, uncheck it.

Step 5. Run and wait for the ripping

Here we leave all audio tracks, and hit Save Selected titles.

makemkv save porn dvd

As mentioned by MakeMKV, “The time to convert the disc is determined by a single factor – how fast is your drive capable to read. A typical time to copy DVD disc is about 15 minutes.” , this DVD takes me about 35 minutes since it over 3 hours, about 240 minutes. This is fast as the DVD drive only offers 8x read speed.

I have to say now that MakeMKV really does a great job ripping the porn DVD from Japan, and it is free!

What we can further do with MKV?

MKV stands for “Matroska Video”.  MKV is open and free. No one holds patents or licenses and anyone can implement it freely. So, there is much more things we can do with MKV files on Windows and Mac.

How to Play MKV on Windows and Mac?

MKV files from MakeMKV contains multiple audio and subtitle track MKV with all meta-information and chapters preserved. To be able to play MKV on Windows and Mac is easy, but you’d better be able select or even disable different audio/subtitle tracks and thus VLC player or IINA player is recommended for playback. It is free and open source cross-platform multimedia player for Windows and Mac. If you are on Windows, MPC-HC is also recommended.

vlc mkv playback

How to Convert MKV to AVI, WMV, iPhone, iPad, Final Cut Pro

MKV is good, but it is still not universal. For iPhone, iPad and Apple TV or TCL, Samsung smart TV users who’d like to enjoy the porn video on their devices, they will still have to re-convert the MKV to iPhone/iPad/Apple TV friendly video format in MP4 or M4V. Also Final Cut Pro does not like MKV either. For whatever else reasons, if you want to convert MKV to AVI, WMV, MPEG4, H264/H265 or devices like iPhone/iPad, Galaxy S9 etc, I recommend Wondershare Video Converter Ultimate which is available on both PC and Mac for converting.

How to burn MKV files back to DVD on Windows and Mac?

It seems Japanese adult movies are way too much to rip, I have now find no program to directly copy the porn DVD to another DVD. However, with the help of MakeMKV, we have successfully rip the porn DVD series SNIS to MKV with all chapters preserved, so it is now no problem to burn it back to DVD on Windows and Mac. Leawo DVD Creator or Wondershare Video Converter Ultimate are the two best DVD authoring software on Mac and PC and it’s able to burn popular video formats including AVI, MOV, MP4, WMV to DVDs with interactive menus, making DVDs professional-looking. So, with this two programs, you are able to backup the adult movie to another DVD.

How to Full Rip Japanese Adult Porn DVDs on Windows, Linux and Mac free
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