Whenever you play a movie it includes at least one video stream and one audio stream. Since its not practicle to have 2 files to play Audio/Video, you pack both into a single file by using a so-called container format file. This container and the software coming with it take care of a lot of important functions, like the correct timing of the audio and video playback when the file is played ( opened ). ZIP or RAR could be a perfect container to pack one or more audio/video streams together into one single file for distribution, but WinZIP certainly wouldnt care about the correct timing of the these streams on playback ... Known containers are the good old AVI, or the MPEG container ( .mpg , .mpeg ), Quicktime ( .mov ), Realmedia ( .rm ), MP4 ( .mp4 ), etc.

Steps to convert MKV to iPad:

Step 1: Add MKV video from "Add File" button

Free download 4Videosoft MKV to iPad Converter online and run it, and you will see one user-friendly interface as follow"

 

Then you can click the "Add Video" button to add MKV videos to this MKV to iPad Converter.

 

Step 2: Choose output format and destination

Choose iPad compatible format from the drop-down menu of "Profile" and choose the destination for the output video by click "Browse".

 

Step 3: Set detailed parameters from "Settings"

Click "Setting" and you can set detailed parameters, like video biterate, audio biterate, sample rate and so on.

 

Step 4: Convert MKV videos with "Convert" button

Click the "Convert" button to convert MKV videos to iPad compatible format.