Motorola Defy is an updated, sleeker version of the Motorola i1. The ruggedized smartphone is water resistant and dust-proof, and contains a scratch-resistant 3.7-inch WVGA touch screen. Motorola Defy video format are MP4, H.264, WMV and audio formats are MP3, AAC, AC3, etc.

If you need to play DVDs on Motorola Defy but don't know which format can be played on the smartphone, you can use DVD to Motorola Defy Ripping tools for this, convert DVD to MP4 or H.264 format that Motorola Defy compatible with.
Leawo DVD Ripper can convert home DVDs and copyright protected DVDs to video and audio format including WMV, MP4, FLV, AVI, MKV, WAV, MP3.
Guide: Convert DVD movies to Motorola Defy by DVD Ripper with 3 simple steps

1. Add DVD to Motorola Defy
Install and run this DVD ripping software, click "File> Add DVD" or "Load DVD" button to load DVD.
2. Select output format
Select "MP4-MPEG-4 Video (*.mp4)" from pressing "Profile" drop-down list. Click on "Settings" button to set video size as 480 x 854 pixels. Keep other parameters as the default if you are not sure what those parameter mean.
3. Star converting DVD to Motorola Defy
After complete above steps, press "Start" button to convert DVD to Motorola Defy.
If the conversion is finished, connect Motorola Defy to your computer via min-USB cable. You can now enjoy DVD videos with your phone wherever you like.
This software also supprot other devices such as Motorola Xoom, Droid, Photon, iPhone, iPad, iPod, HTC Desire, Playbook, Touchpad.