Install software: Sothink Video Converter
Estimated Time of Completion: 3 minutes

Apple iPhone users can find a wide range of videos on YouTube, Google, MSN and almost all popular video sites. There are entertainment videos, jokes, music videos, move clips, behind-the-scene stories, etc. When finding what you want, you can use free video download tools to capture videos. There are too many tools over the internet, but here I recommend a completely free plug-in --- Sothink Web Video Downloader for Firefox, which works fast and easy to handle.

Step one: Add video.
Double clicking the program icon, you can see interface as below. Click button "Add" to add video files you want to convert. Then click "Next".

Tip 1:
Click "Crop & Trim" button to crop source video with simple drag and drop operations or directly choose from options of the drop down button "Aspect ratio"



Tip 2:
Set start and end points with video navigation slider to convert only a part of video:

Step two: Choose output format and file location.
Press "Select." button to choose preferred output directory and click the drop down button to choose output file format "iPhone Video". Then hit "Next" to start converting.

Tip:  All the values of audio and video here are the best to generate output files with the excellent quality of image and sound, so just keep these settings and continue.

Step three: Complete conversion.
The converting process is like below, and during the process, you can check to set post-processing options. Hit "Open folder" button to find the output iPhone MP4 file directly after it completes.

Tip:
Checking "Play a sound when conversion is finished", it will tell you that the conversion is done by playing a sound;
Checking "Shut down the computer after all tasks are finished" lets the program automatically shut down your computer when all conversion tasks are done;
Checking "Load the created files to iPod" will load the files to iPod directly after conversion.

Step four: Transfer video to iPhone.
After finishing converting, you can attach your iPhone to the computer and sync it with Apple iTunes. Open Apple iTunes and drag your new videos to your Library window or directly onto your iPod or iPhone.
Now what's left is to enjoy your favorite movies!

Have got it? Happy to share and may this help you a lot! Thank you!