Avidemux

Using Avidemux to convert a video to play in iPhone, iPod, iPod 5.5G, Zune, Sony PSP, and Microsoft Zune, you can click Auto on the top menu and chose the one you want. Then the application will automatically make all settings so that you don’t need to manually make the settings on the left panel. It supports a wide range of import file types including 3GP, ASF, AVI, FLV, MPEG, MKV, MOV and MP4. Besides, it is also a great video editing program; check here.

Auto format option in Avidemux

Xvid4PSP

Xvid4PSP has many format preset options for mobile devices including PSP, PS3, iPod, BlackBerry, iPhone, Nintendo DS, Xbox 360, SonyEricsson, Nokia, and Itouch. But it works a bit too slow.

Format options in Xvid4PSP

Format Factory

Format Factory is a versatile multimedia file converter, converting all popular video, audio, and picture formats to others.  To convert videos to mobile devices, click the option of All to Mobile Device under Video in the main interface and then choose the corresponding device. It covers a very wide range of devices.

profile option in Format Factory

HandBrake

HandBrke has the presets for iPod, iPhone and iPod Touch. Just select the wanted one and it will do the job quick and great. Supported sources: Any DVD-like source: VIDEO_TS folder, DVD image or real DVD, and VOB and TS files. Most multimedia files it can get libavformat to read and libavcodec to decode. To make Zune HD in the presets, check here.

Presets in HandBrake

Videora

Videora has individual converters for devices of Apple, Sony, RIM, Nokia, Microsoft, Motorola, Sonny Ericsson and more. They can convert all popular types of video files.

Videro iPod Converter

The above listed video converters are the best I pick from all the free converting apps， but if you cannot find one  that satisfies you with the reasons of working not fast enough，output quality not great enough to meet your requirement or any other reason， you can  try a paid video convert. Our video converters can convert various videos to  mobile devices with fast working speed, excellent output video quality and absolutely synchronous video & audio. If you want to directly convert video from encrypted DVDs to mobile devices, check our DVD ripper.