A torrent is an extremely small file that stores metadata and indicates the location for downloading the target file. You can search for torrents on many torrent index sites such as isohunt or thepiratebay and using tools like uTorrent to download them simply by clicking on them.
Once you have the torrent file in your computer you should be able to directly import some type of files like MP3 into iTunes. However, when the downloaded torrent file is AVI or MKV format that iTunes doesn't support, you have to convert them.
Note, you may need another program such as WinRAR (for Windows) to extract the torrent first, if the file you download is a .rar or .zip file.
Now, let's get into how to convert torrent to iTunes readable format step by step. The software you need is iPad Video Converter that will convert movies/videos to iTunes format like MP4. You can download iPad Video Converter for a try here. For Mac user, please refer to iPad Video Converter for Mac.
Step 1 Install and run iPad Video Converter. Now load your torrent files(.avi, .mkv, etc.) to the program by clicking "Add File ".
Step 2 Set the output format - from the "Profile" drop down list, choose General Video > H.264 /MPEG-4 AVC Video (*.mp4)
Set the output destination at "Destination".
Step 3 Click the big "START" button to start converting torrent to iTunes. The amount of time it takes will depend on the file size.
Convert DVD movies to iPad video and audio easily. The default presets are the optimized settings for iPad with best video quality and sound effect.