“I have just got an Iron Man 3 DVD disc and would like to watch and play DVD on Kindle Fire HDX tablet. I know that I need to convert the Iron Man 3 DVD disc to video in Kindle Fire HDX compatible formats. So, what kind of DVD to Kindle Fire HDX converter should I use and how do I rip and convert DVD to Kindle Fire HDX videos?” To convert DVD to Kindle Fire HDX videos, you need firstly to know what kind of video formats Kindle Fire HDX tablet recognizes. All media formats supported by Kindle Fire HDX tablet are: Kindle (AZW), KF8, TXT, PDF, unprotected MOBI, PRC natively, Audible Enhanced format (AAX), DOC, DOCX, JPEG, GIF, PNG, BMP, Dolby Digital (AC-3), Dolby Digital Plus (E-AC-3), non-DRM AAC, MP3, MIDI, PCM/WAVE, OGG, WAV, M4V, MP4, AAC LC/LTP, HE-AACv1, HE-AACv2, MKV, AMR-NB, AMR-WB, HTML5, CSS3, 3GP, VP8 (WEBM). Thus, you could convert DVD to MP4, MKV, WAV, etc. for Amazon Kindle Fire HDX. You could take use of DVD Decrypter to help you rip DVD to Kindle Fire HDX videos. This DVD Decrypter is the best DVD to Kindle Fire HDX converter to process DVD to video conversion for Kindle Fire HDX tablet. The following steps show you how to convert DVD to Kindle Fire HDX videos in details.
Things you need to prepare
- DVD Decrypter: Download DVD Decrypter and install it.
- Computer with DVD drive, and insert your Iron Man 3 DVD disc into the drive.
- Of course your Kindle Fire HDX tablet and connection cable.
Step 1: Load DVD disc
Insert the DVD disc into the DVD drive and kick off DVD Decrypt. Launch the DVD Decrypter and click the “Load DVD” icon to load source DVD discs. You could also click “File > Load DVD Disc” option to import source DVD disc content. 
Note: You could load DVD disc, DVD folder or DVD ISO files for converting with this DVD converter.
Step 2: Video settings (optional)
After you load source DVD movies, you could do a bunch of video settings, like video editing, 3D creating, subtitle setting, etc. 
1) You could check one DVD source and select Audio Track and Subtitle below the left processing list. 2) If you need, you could click “Clip” and “Edit” buttons to adjust video effect, crop video size, cut video duration, add watermark, etc.
Step 3: Output format settings
Click “Destination” drop-down box to set output directory to save the converting result. Click “Profile” box to set output format for your Kindle Fire HDX tablet, like MP4 or WMV from General Video group, or directly selecting “Kindle Fire Video (*.mp4)” from Android Group. For your convenience, you could make use of the Profile Search bar on the Profile panel to input “Kindle Fire” or “MP4” for profile targeting. 
Note: You could also click the “Settings” to adjust the video and audio parameters of output files. In the Video Settings, you can select Encoder, Frame Rate, Resolution (you could define it yourself according to your Kindle Fire HDX tablet) and Bitrate for your movie. In the Audio Settings, you can select Encoder, Channels, Bitrate and Sample Rate for your movie. when you choose the specific settings, the lower window will show the “help” to explain the meanings of each setting. 
Step 4: Start conversion
Click the bottom-right convert button to start converting DVD to Kindle Fire HDX tablet. After converting, you only need to transfer the converted DVD movies, now in video format, to your Kindle Fire HDX table via the connection cable.