Xilisoft Video Converter is an M4V to FLV Converter which can convert M4V to FLV with ease. The M4V to FLV Converter supports batch conversion, multithreading. When convert M4V to FLV, you can select the video and audio codec, set the output parameters.

In addition, the M4V to FLV Converter and M4V to FLV Converter can convert between other video and audio formats such as MP4, MOV, 3GP, M4A, MP3, AC3, etc. You can download it from here.

Now let's focus on how to convert M4V to FLV with the M4V to FLV video converter.

1. Start up Xilisoft Video Converter

Launch Xilisoft Video Converter, add your M4V file by clicking "Add" in the File menu or in the main interface.

2. Select the target to decode

By highlighting the M4V file, you can see its info including video codec and audio codec in the recording area.

In "Profile" drop down list box, you may select output format. The software allows setting different output formats according to different files.

3. Set advanced parameters

After selecting certain output format, the right column will show its general standard. By clicking certain settings such as "Start Time", "Video Size", "Video/Audio Bit rate" and so on, you may set it.

4. Choose the destination

Now let's select the output folder by clicking the "Browse..." button or directly enter a path in "Destination" drop down list box.

5. Start the M4V to FLV conversion

Finally, click "Encode" in the File menu. After a successful conversion, the info "Completed" will show.