I am looking for a good software that can resize .mkv or .ts movie to smaller resolution? I don’t think my smaller device need 720p or 1080p resolution. It there a good popular software that can do this?
An MKV file is a type of video file. Many movies or TV shows streamed over the internet are increasingly seen in .MKV extensions, particularly for high-definition videos (1080p). In this tutorial, let’s see how you can resize your MKV video on Mac OS X.
Part 1: Resize MKV file on Mac with Handbrake
Handbrake for Mac can rip MKV video files on Mac and convert video to MKV, MP4 for Mac OS X. Though some users complain that it takes a long time and sometimes fails and quits unexpectedly. It do works for some MKV files. Here, I’ll show you how to Resize MKV File with Handbrake on Mac.
1. Download the latest version of Handbrake. Handbrake is free and works for Mac OS X, Windows, Linux, these instructions apply to all platforms.
2. load MKV video files you want to convert

Note: Not all videos can be imported to convert, and you can only convert video one by one with Handbrake, so if you can not load your videos successfully or wanna have batch conversions to save time, you can use Video Converter for Mac.
3. In the output settings tray on the right side, select the device you want to optimize the video for (you can select Universal if you plan on using it for multiple iOS devices)
Tips: Setting Introduction of handbrake Mac
Video Settings: Framerate(FPS): Select a frame rate that you prefer.
Quality: There are three options available: 1. Specify an output size and the quality will depend on the specified output size.2. Select a birate. The higher bitrate you choose, the bigger size the output file will be, and the better quality you will get. 3. Directly select a quality.
Encoder: 2-pass encoding (optional): This takes twice as long to encode, but it improves the video quality and doesn’t make the file any larger.
Picture Settings: Here you can set video resolution and crop video. Handbrake highest resolution for the output video depends on the original video resolution and optimized output video for player such as iPod, iPhone, QuickTime, Apple TV, PSP, PS3, Xbox 360. For example, the highest resolution optimized supported by iPod nano-chromatic and iPod Touch is 640*480, you can set up to 640*480 resolution for the output if the resolution of the original video is higher or set up to the same resolution with the original if the resolution of the original is lower. The crop function of handbrake for Mac is kind of like a decoration here, because it is not powerful or practical.
4. Click on “Start” and wait, Handbrake will convert the video to the format you chose.
Part 2: Best handbrake alternative to resize MKV video on Mac
If what you need is beyond HandBrake’s own functions, for example, resizing MKV video files in bulk, or editing videos, or just because Hanbrake can’t work with your MKV videos, you can also use iFunia MKV Video Converter for Mac to change your video size. This Mac program provides video converting feature and video setting customization support, that’s to say, you can convert MKV to other format which can save your video in much smaller size, or reset the MKV video settings to reduce the video size. Here I’ll show you the easy steps.
Click here to free download iFunia MKV Converter for Mac.
Step 1. Add MKV Video Files
Run iFunia MKV Video Converter for Mac, drag & drop your MKV video files to it. This Mac app supports batch conversions, that’s to say, you can convert several files at one time to save your time: hold the command key and select several files, drag and drop them to the Mac app.

Step 2. Resize MKV Video Files on Mac
To compress MKV files to reduce the file size, you can:
Select a proper output format from the formats list to smaller the video size. For example, you can convert MKV to FLV to resize your MKV files – FLV files are much smaller than MKV files when saving the same videos.

Or you can keep MKV as your output format and reset the output video settings. customize the output video settings to reduce your MKV video size. It’s available to lower down the video resolution for reducing the MKV video size.
Step 3. Start the MKV Video Resize Task
Click the Start button. That’s all you are required to do. The MKV Video Converter will automatically finish the rest.
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I’ve never done it, but a quick Google search shows that you can use iMovie to achieve this.
Do you have quicktime pro, or are you using imovie or Final cut pro. got o export as quicktime then click on option you will see a size button.