how do i can convert flv to dat file in format factory

uninstall and reinstall format factory, see if this will help, also can you play the file in WMP or other video player prior conversion?

Answered Jan, 28 2012

 In fact,mp4 and mpeg 4 are the same thing.There is no need to convert it.

You can directly play it on your mp4 player. 

Answered Sep, 05 2010

Conversion of Flash® video files (FLV) into data files (DAT) requires the use of a program designed to convert one video file type into another. Programs like this are sometimes called codecs or encoding-decoding programs. Codecs are easy to find through an Internet search, but it can be hard sifting through all of the different options. If you want to convert FLV to DAT, you could go with a program that does only that, or you might want a program that can convert a larger variety of media files. There are many possible programs to download or purchase, so find one that both fits your conversion needs, file types and has a comfortable, functional and reliable interface.

After downloading a program, be sure to read the instructions for its use. Most of these programs will be very simple to use. You typically will be able to open the program and select the FLV file that you want to convert, or you might be able to drag the FLV file and drop it onto the conversion program in order to select it. After choosing from the potential options that the program provides and identifying where you want the DAT file to be placed on your computer, you should be able to begin the conversion process with a simple click. When the conversion program finishes, the DAT file should be ready to use. Answered Mar, 23 2011