Dvd Compression Mac Freeware MacX DVD Ripper Mac Free Edition v.4.2.5 MacX DVD Ripper Mac Free Edition is the best free DVD ripper for Mac to backup and rip homemade and protected DVDs to MOV, MP4, M4V, etc for playing on iPhone, iPod, iPad, iTunes, Apple TV, etc at blistering speed and flawless video quality. Burn video to playable DVD with attractive free DVD template. Download or record videos from video sharing sites. Versatile toolbox includes fixing video metadata, GIF maker, casting video to TV, VR converter and screen recorder.

MKV is the shortened version of Matroska Video. It gathers multiple types of files, including subtitles files, audio tracks, multiple video tracks, etc.

That is to say, MKV video is usually in much larger file size. And due to its large file size, we may meet some troubles when uploading MKV to certain vidoe sharing sites, and plan to store more MKV movies on our storage device. Sometimes, we even find the screen resolution of our devices do not support the playback of large resolution file size of MKV. So is there any free ways to compress big MKV file to smaller size? Yes, of course there is. Just follow the tutorial below to compress big MKV files with no quality loss. Part 1: Parameters that affect MKV file size Before compress big MKV file, we need to learn these video parameters that affect video file size, which will help us make sense of the options we have while compressing MKV.

Codec: This is a method that computer uses to decide on the amount of change that occurs between frames. Keyframe: This is a reference frame. The codec will determine a keyframe every few frames. This is the base frame for the next few frames of change.

Format drive for pc and mac. Your keyframe interval will have a large impact on the size of your MKV file. Lots of keyframes will make the file large but higher quality. Infrequent keyframes will leave lots of artifacts. Artifacts: These are blocky pieces of image that are the result of the keyframe not being updated correctly.

The lower the quality of the compression, the more artifacts that will appear. Bit/data rate: This is the amount of data that each second of video uses. Typically, this is measured in kilobits per second.

Bit rates can be either Constant or Variable. A constant bit rate stays the same throughout the video, which can lead to larger video files. A variable bit rate changes depending on the amount of action on the screen, which will lead to smaller files. Frame rate: this is the number of frames per second. Videos are typically shot in 24 or 30 frames per second. Keep the compressed copy's frame rate the same otherwise playback will be affected and audio may not sync properly. Resolution: This is the size of the outputted video.

It is measured in pixels, width x height. Libre office for mac. Part 2: How to Compress MKV Files on Mac/Windows? After comprehending these video parameters that affect MKV file size, let's start compress big MKV file to smaller one.

As I know, there are mainly two methods to compress MKV video file size: Method one: Compress MKV by converting MKV to H.264 MP4 With same video quality, MKV file size is much larger than H.264 MP4. To shrink MKV without quality loss, we can convert MKV to H.264 MP4. Method two: Shrink MKV by adjusting MKV video bit rate, resolution, frame rate, etc. This method helps to shrink MKV files to achieve a good balance between quality and file size.

To successfully compress big MKV, you can choose method one to change video format, or use the second method to shrink MKV file size. You can also utilize the two methods at the same time to.

Then, here comes the question: how to convert MKV to MP4 and how to adjust MKV parameters? Here I highly recommend, which is a easy-to-use video converter and compressor for Mac users (support macOS 10.13, macOS Sierra, Mac OS X 10.11 El Capitan, etc). It is capable of converting and compressing 4K/ UHD/1080p large video file like H.265, MKV, XAVC S, MXF, MTS, M2TS, AVCHD, etc. To small file size in the file format of MP4 with H.264 codec. Futhermore, this MKV compressor also provides video editing functions for you to reduce video file size, such as cut out unwanted segments, lower the file resolution or bit rate of the output video, etc. Apart from compressing common video file, this program also gives you a chance to compress Blu-ray or DVD to your desired file format or device preset profile formats. Outlook for mac osx make account inactive quickbooks.