MKVs are an open-source format that supports audio, video, pictures, and subtitles. A high-quality 720p MKV can be converted to a DVD-quality 480p AVI file by using a video converter. Conversion programs such as Total Video Converter, AVS Video Converter, and Dream MKV Converter all offer free trial versions.
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Input your 720p MKV into Total Video Converter by clicking the upper "Browse..." button on the right side of the program's screen. Navigate your hard drive's contents via the search window, highlight your MKV file, and click "Open."
Click the "To AVI" button at the top of Total Video Converter's interface.
Press the "Advanced >>" button in the lower-left corner of the program's screen. Click the "Frame Size" field and manually enter the desired dimensions for your video. For standard dimensions, enter 480 x 320 for width and height, respectively. Consult your user manual for the proper dimensions your device or video player can support.
Click the "Convert" button to begin converting your 720p MKV to 480p AVI.
Click the "Browse..." button to the right of the "Input File Name" field to enter a pop-up search window. Navigate through your computer's contents and locate your input MKV file. Highlight your MKV and click "Open."
Press the "To AVI" button at the top of the AVS interface. Click the "Advanced" button to the right of the "Profile" field to enter the "Conversion Options" screen. Click the "Output File" tab. Enter the 480p dimensions for your AVI video in the proper field and click "OK."
Click the "Browse..." button next to the "Output File Name" box and select a folder on your computer to save your converted file to. Press "OK."
Press the "Convert Now!" button in the lower-right corner of the screen to begin the conversion.
Input your 720p MKV by clicking the "Add Files" button in the top-left corner of the screen. Search for your video in the pop-up window, highlight its icon, and click "Open."
Click the "Profile" drop down box near the bottom of the screen and hold your cursor over the "Common Video" sub-menu. Select one of the "AVI" output formats from the list of options.
Click the "Settings" button in the program's main screen to enter the "Format Setting" window. Choose the "480 x 320" resolution option in the top-left of the screen and press "OK."
Press the "Convert" button in the bottom-right corner of the screen to begin converting your 720p MKV.
Tips and warnings
- Allow several hours for your 720p MKV to convert to 480p AVI, depending on the size of your MKV file and your computer's processing speed.
- For feature-length movies, make sure you have at least 1Gb of space on your hard drive.
- You will most likely lose resolution in your output AVI, since you are downgrading from a 720p high-definition video to standard definition.
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