This guide will tell you how to convert ASF to iPhone 4 supported format with ASF to iPhone 4 Converter -- Cucusoft DVD to iPhone 4 Converter Suite, which is a professional Video to iPhone 4 Converter Suite to convert both DVD media and video file to iPhone 4 with fast speed and high quality.
Before converting, here we'd like to introduce you more information about ASF. ASF, Advanced Systems Format (formerly Advanced Streaming Format, Active Streaming Format), is Microsoft's proprietary digital audio/digital video container format, especially meant for streaming media.
Now let's say how it performs to convert ASF to iPhone 4 step by step.
Step 1: Download and Run
Free download Cucusoft DVD to iPhone 4 Converter Suite via the link below and install it onto your computer, then run it.
Tips: This guide ASF to iPhone 4 Converter is for Windows user, For Mac user, here is Mac Video to iPhone 4 Converter.
Step 2: Select iPhone Video Converter and then click "Open file" to load the ASF files you want to convert to iPhone 4.

Step 3: Set output format as iPhone 4 supported format in by clicking "Profile":

Step 4: Click "Convert" to start to convert ASF to iPhone 4 supported format. When conversion process finished, sync the converted files to iPhone 4, Done! Now you can enjoy them on your iPhone 4 anywhere and anytime!
Besides converting ASF to iPhone 4, you can also convert MKV to iPhone 4, convert DVD to MP4 H.264, play YouTube videos on iPhone 4, etc.. Free download to convert ASF to iPhone 4 and experience more by yourself immediately!