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Convert ISO to MKV without Quality Loss in 3 Ways

"I've ripped my DVD collection to ISO files at 1:1 ratio. But now I want to convert ISO to MKV, for the sake of playing on Plex, and also to release space for my computer. The file size of an ISO image is as big as the source disc. An ISO file will eat up a few gigabytes. So, my question is how I can convert ISO files to MKV format. Which software should I use?"

Ripping disc to ISO image can maintain full content and original quality, but we might need to do conversion because of compatibility, space or other kind of issues, as mentioned in the quotes above. In this article, we'll introduce 3 ways to convert ISO to MKV.

Use WinX, MakvMKV or Handbrake to Convert ISO to MKV?

Part 1. How to Convert ISO to MKV with All Tracks Reserved via WinX

WinX DVD Ripper for Mac is available to convert ISO to MKV with all/selected video, audio, subtitles tracks, as well as rip DVD disc and DVD VIDEO_TS folder to MKV, MPEG2, MP4, H.264, MOV, M4V, AVI, iPhone, iPad, and more. There're more than 350 output presets for you. More copy mode options are also available, including 1:1 clone DVD to MPEG-2 file, backup DVD with main/full titles.

Now, free download WinX DVD Ripper for Mac and install it. Once done, open it and follow our guide below to convert ISO to MKV without quality loss.

Free Download for Mac OS X 10.6 or later

Please DO Not use WinX DVD Ripper to rip rental DVDs.
If you are a mobile user, please click here.

Tutorial | How to Remux ISO Image to MKV on macOS

Step 1. Click "ISO" button and browse to add your ISO movie from your computer hard drive or from an external storage device. WinX DVD Ripper for Mac will automatically check the main title. To convert more titles, check them manually.

Convert ISO to MKV with WinX DVD Ripper for Mac
Convert ISO to MKV with WinX DVD Ripper for Mac

Tips: copy-protected files are supported as well.

Step 2. On Output Profile window, go to "DVD Backup" and choose "Backup full title to MKV".

Convert ISO to MKV with WinX DVD Ripper for Mac
Convert ISO to MKV with WinX DVD Ripper for Mac

Step 3 (optional). Check Intel/AMD/Nvidia (which can boost speed by utilizing GPU hardware acceleration), Use High Quality Engine, Deinterlacing (which is designed to change interlaced video to progressive scanning video), Safe Mode (which is very helpful when the source file is strictly encrypted), and specify how many CPU cores you want to use.

Step 4. Click "Browse" to specify destination folder and tap "RUN" to start conversion from ISO to MKV. Thanks to GPU hardware acceleration, multi-core CPU and Hyper-threading technology, you just need to wait about 5 minutes for the conversion process to complete.

Part 2. How to Convert ISO to MKV with Open Source HandBrake

HandBrake is an open-source video transcoder as well as a DVD ripper with only 2 output formats supported: MP4, MKV. It happens to convert ISO file to MKV on Windows, Mac, and Linux. Of course, you're required to make sure that your ISO image is not copyright protected, for this free open source DVD ripper is unable to handle severely encrypted DVDs even under the help of libdvdcss library. Or, you'll still get the message like no valid source found, similar to DVD disc detection.

After your ISO image source is checked to be acceptable by Handbrake, let's walk you through how to convert ISO to MKV with HandBrake.

Step 1. Download and install HandBrake. Launch it when you finish installation.

Step 2. Load target ISO file to HandBrake. You can drag it to HandBrake or click "File" option under "Source Selection" to browse and open the ISO file you want to convert to MKV file. Note: HandBrake doesn't support copy-protected files.

Step 3. Choose title and chapters.

Step 4. Choose a MKV preset. HandBrake lists many MKV presets under Matroska category. Simply choose one based on your own needs. Since DVD resolution is 720x480 or 720x576, you're not suggested to choose a MKV preset that is designed with a resolution higher than your original DVD's resolution.

Convert ISO to MKV with HandBrake
Convert ISO to MKV with HandBrake

Step 5. Click the "Browse" button at the bottom right to specify which save path and output file name.

Step 6. Click "Start Encode" on the top menu bar and then HandBrake will begin transcoding ISO image to MKV format.

Part 3. How to Convert ISO to MKV with MakeMKV

MakeMKV is another ISO to MKV converter we want to introduce here. It comes with somewhat old-fashioned interface, but it works. Check the conversion guide below.

Step 1. Download MakeMKV for your Windows or Mac computer. Then, install and open it.

Step 2. Click "File" -> "Open files" or press Ctrl + O to browse and import target ISO file. MakeMKV will take some time to process titles and decrypt data.

Convert ISO to MKV with MakeMKV
Convert ISO to MKV with MakeMKV

Step 3. When ISO is loaded, you will see titles, video, audio, and subtitle tracks in a tree structure. What you need to do here is to select desired titles and tracks.

Step 4. Set output folder and then click "Make MKV". Then, simply wait for the process to finish.

Hope the above-mentioned free ISO to MKV converter software be helpful for you in ISO to MKV conversion. You're warmly welcomed to share with us your user experience if you've used other applications like mkvtoolnix, VLC, FFMPEG.

ABOUT THE AUTHOR

author - Donna Peng

Donna Peng twitter icon

Donna Peng's fascination with multimedia began at an early age - shortly after she licked the physical disc and then she's been obsessed ever since. Her decade-long career at Digiarty after the graduation has seen her unmatched expertise in the field of DVD, digital video, software and anything related to home theatre. She is currently fascinated with photography.

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