Summary: Follow this article you will know how to import your AVI files for editing and playing, first you need to transcode these AVI video clips to MP4 format with Zero Quality Loss in Windows 8.1/Mavericks.

AVI, a short for Audio Video Interleave, is a file format designed to store both audio and video data in a standard package to allow its simultaneous playback. Maybe you’ve got some torrent movies or TV shows in AVI format, or some family AVI footages from your digital camcorders, like Cannon camcorder or mobile phone. However, some media applications and portable media devices do not support AVI and require conversion, such as iPhone, iPod, iPad, HTC and so on.

To watch AVI movies on your iPod or one of the many other mobile devices, you will have to convert AVI to MP4. In order to convert AVI videos to MP4 effectively with Zero Quality Loss in Windows 8.1/Mavericks, you will need a reliable AVI to MP4 converter.

Part 1: Best Desktop AVI to MP4 Converter

Here Pavtube Video Converter Ultimateor iMedia Converter for Mac, which is the best tool to accomplish your goal by converting AVI to MP4. Overall, the all-in-one program can easily convert Blu-ray DVD disc, DVD folder, DVD IFO/ISO file and various videos inluding the BDMV files to any video format for different devices including iPad Air, iPhone 5S, iPhone 5C, Kindle Fire HDX, Apple TV 3, Samsung Galaxy Tab Pro, Galaxy Note 3, Google Nexus 7/10, WD TV, WD TV Live, and more.

Why Choose Video Converter Ultimate (Windows / Mac)

1. Almost all video/audio formats supported

2. Output playable videos/movies for all popular devices

3. 6x Faster Conversion Speed

4. You can make a stunning Hollywood movie to wow your friends by editing videos.

Guide: How to Use Pavtube Video Converter Ultimate to convert AVI to MP4 with Ease in Win/Mac (Windows 8.1/Mavericks included)

Step 1. Run the best AVI Converter, click “Add Video” to add your AVI files.

Step 2. Clicking the “Format” menu, here you are suggested to choose “Common Video > H.264 Video(*.mp4)” for playback or editing.

Step 3. If you like, modify profile settings such as video size, bitrate, frame rate, etc to get optimized video and audio playback.

Step 4. Return back to Video Converter Ultimate main interface, and hit the “Convert” button to start encoding AVI to MP4 format. Once it finishes, open output folder, locate the created file and you can transfer them to your MP4-compatible media players for watching.

Part 2: More options: Free Online AVI to MP4 Converter

Online Video Converter: Zamzar

Zamzar is an easy to use free online video converter. You can just copy the web video link or upload your local file to easily donwload and convert the video.

Pro: No software to download, real time information.

Cons:

1. It has a limitation for output file format.
2. It only lets you free convert files less than 100MB.
3. Conversion speed is slow.

Part 3: Extended Knowlege for AVI and MP4 Format

See also:

How to Convert .dvdmedia Files to MP4 on Mac
Convert WMV to MP4 with Ease in Win/Mac (Windows 8.1/Mavericks included)
Encoding WebM HTML5 video by Converting Webm to MP4 without quality loss