This guide show you how to convert MKV to AVI, WMV, MP4, 3GP, MPEG, RMVB, MOV, FLV, etc to play them on iPod, Zune, Creative Zen, PSP, Mobile phone, etc with MKV Converter.
Step 1: Install and run MKV Converter.
Step 2: Load video files and select output formats.
Select “Add” button to load the video files.

Click “Profile” drop-down list to choose output format.

Step 3: Edit your output files
After you load the video files, press the “Edit” button you will open the interface below which is a two real-time preview windows to see the differences before and after you editing the videos.

As I said, the MKV converter provides me a professional and easy-to-use editing function, I list them below.
1. Adjust brightness, contrast, saturation, etc in the “Effect” selection.
2. “Crop and Trim” help you cut off the undesired area from your movie video and choose your favorite clips to convert.
3. “Merge multiple videos” into a single longer movie file just choose the merge check box.
4. “Snapshot” your favorite picture as an image file
5. Either customizable text or image watermark designing empowers you to coin and color your video files in a personalized way.
6. Select different video aspect ratio from full screen, 16:9, 4:3 and Keep Original.
Step 4: Start the conversion
Click the “Start” button to start conversion.