According to the product sheet, Kindle Fire accepts these file formats: Kindle (AZW), TXT, PDF, unprotected MOBI, PRC natively, Audible (Audible Enhanced (AA, AAX)), DOC, DOCX, JPEG, GIF, PNG, BMP, non-DRM AAC, MP3, MIDI, OGG, WAV, MP4, VP8. This means, if you happen to have some videos in AVI, MOV, AVCHD, WMV etc. you are unable to transfer them to your new Kindle Fire for use only if you convert your file format to the compatible one with Kindle.
Convert and Play AVI, MP4, MOV and More Videos on Kindle Fire
This kind of video conversion is not a tough work. Here you will learn the easiest and quickest solution. To convert media files in AVI, MOV and more videos to Kindle fire on Mac OS X (El Capitan included), iSkysoft iMedia Converter Deluxe is used. This Mac app supports converting any video in all popular formats at ultra-fast conversion speed.
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Part 1. How to Convert AVI, MP4, MOV, etc to Kindle Fire Supported Format
Step 1. Download the Kindle Fire Converter for Mac and add files
Download the Mac app and launch it. Then open the Media Browser by clicking the button at the top right corner. In Media Browser, find the original videos and drag them to the item tray. Or you can directly drag the originals to the Kindle Fire Converter for Mac from your desktop.
Step 2. Choose the compatible format
In the format tray, go to "Devices" category and choose "Kindle Fire" as the output device.
Step 3. Start to convert AVI, MOV, etc. to Kindle Fire on Mac
Click the "Convert" button and the Mac iMedia Converter Deluxe will finish the rest automatically. After the conversion, transfer the converted files to your Kindle Fire. See part 2.
Connecting Kindle Fire to Mac and transfer files to Kindle Fire
1. Plug the Kindle Fire to your Mac via USB and unlock the device;
2. The Kindle Fire appears as an external storage drive on your Mac desktop, click to open it. While using as an external drive, you can’t do other things directly on the device;
3. Drag the converted files to the possible content folder of your Kindle Fire like Music or Pictures;
4. After the transferring, hit on "Disconnect" button on your Kindle Fire and unplug it.
Try this Free Online Tool to Convert Videos to Kindle Fire
If you don't want to install a computer program, you can also try online video converter to convert your videos to Kindle supported format. So that you can freely play videos on Kindle as wanted. Try it below: