Freemake Video Converter: Best free converter for creating compressed .MKV file.You can also see the output size before converting. So, don't worry about- whether it works or not. There’s a condition- you must have installed .Net Framework 4.0 into your
computer. Download if you don’t have(48MB). First install Net Framework then install & run Freemake video converter.
2. Select to MKV from bottom
panel.
3. Click on Edit preset button. It
looks like setting button
4. Give settings like below &
save it by a name. I have used "Super Mkv"
5. You will see your video output size now. If you want to reduce this size more click on the Limit output size button and give as your wish. there will be a minimum & maximum limitations.
6. Click on Convert at last. It
will take about 30 minutes to complete a 3 hour film. According to your
computer performance time will reduce.