MPEG4 is a file format that is commonly used to store media types defined by the ISO/IEC Moving Picture Experts Group, though it can store other media types as well. The files of this format usually have extension .mp4.The start point design of the *.mp4 file format was Apple's QuickTime file format. Having been improved in many ways, today MPEG-4 differs markedly from its predecessor. MPEG-4 allows each streaming over the internet, multiplexing of multiple video and audio streams in one file, variable frame- and bit-rates, subtitles and still images.Being quite often used as the alternative to *.mp3 on an Apple iPod and in iTunes, *.mp4 is still not as widely used in computer and hardware players as the *.mp3 in spite of the higher quality of the AAC codec.

Adobe Flash 9 for Mac is an essential component for watching video and playing multimedia games on the web.dobe Flash Player 9, introduces a host of new features which make Flash even more potent and powerful than before and it's developers that really have something to cheer about. These include new expressive features and visual performance improvements that allow interactive designers and developers to build even richer and impressive Web videos.

Most people know about the lack of support for Flash on the iPad and iPhone, but Flash is alive and well on Mac OS X with the Adobe Flash Player for Mac.

If you have some MP4 files that you want to distribute on a website, you will need to convert those MP4 files to Flash FLV files. Flash FLV files are smaller in size and are the standard when it comes to website video files.You can use the Doremisoft Video to Flash Converter to quickly convert your files.

In this guide, we will introduce you the mpeg4 to flash converter and how mac convert flv to swf or mac avi to swf.

How to Convert MP4 to Flash with Doremisoft Video to Flash Converter:
Step1: Import MP4 Videos
On the main navigation bar, click "Add Video" button to import the MP4 videos you want to convert to Flash. You can select several MP4 videos from your local drive each time. Here is a screenshot after the MP4 files are imported


Step2: Edit the Imported MP4 Videos (Optional)
The powerful video editing features enables you to crop imported video to get rid of the unwanted area, get several segments by clipping, merge or slide the videos, add artistic effect, like Old Film, Gray, etc.

Step3: Customize the Output Flash
Click "Customize" button to select the output profile and adjust the Flash player settings. Choose "Generate SWF" as the output.

Step4: Start to Convert MP4 to Flash.