"I have several F4V videos that play fine in the old player. I've recently got a new player that plays videos but the player cannot open my old F4V videos. I've tried converting those F4V videos to MP4 for playback on Mac but every time the old F4V videos lose their audio track. So, the question is, how can I get the F4V video converted to MP4 successfully on Mac with their audio track? Any suggestions will be appreciated."

Such question is troublesome for many users. Actually, F4V format is compatible with most operating systems via the Adobe Flash Player and web browser plug-in. What if you want to play F4V videos directly on Mac or Windows as well as most popular software like iTunes, QuickTime, etc. without Adobe Flash Player and any plug-in installation? You need to convert F4V to the commonly supported MP4. Besides, after you convert F4V to MP4, you can watch F4V movies on Apple's iOS devices, Android phones and tablets, BlackBerry, etc. In these cases, to convert F4V to MP4 format would be quite helpful for you to watch F4V videos on many media players and devices. How can you make it then? Applying powerful and professional video converter would be the best solution that can help you convert F4V to MP4 without losing any quality or audio track.

Part 1: Differences Between F4V and FLV

As a matter of fact, the two video file formats, FLV and F4V, are both known as Flash Video, though Flash Video content may sometimes be embedded within SWF files. What separates them out, then? Actually, F4V is based on the ISO base media file format similar to MP4 format. Starting with Flash Player 9 update 3, F4V is a standard format that is widely used to distribute dynamic media across the Internet. F4V files are also container files that are used for the playback of certain media files. There are functional limits with the FLV structure when streaming H.264 or AAC which could not be overcome, that's why Adobe developed the newF4V format.

F4V files support H.264, also known as MPEG-4 AVC (Advanced Video Coding), but it does not support some old video and audio codec in FLV format, like Screen, Sorenson Spark, VP6 video codecs and ADPCM, Nellymoser audio codecs, while FLV supports Sorenson Spark, screen video, ADPCM, nellymoser, linear PCM and VP6 video compression. Besides, F4V gives a better support to AAC and H.264 than FLV under the same situation.  

Part 2: Convert F4V to MP4 on Mac with Leawo Video Converter for Mac

When you want to convert F4V to MP4 on Mac, Leawo Video Converter for Mac would be best solution recommended. Far more than a simple F4V to MP4 converter, Leawo Video Converter for Mac could not only convert F4V to MP4, but also convert video files in more than other 180 formats from one to another, such as VOB to MP4, VOB to AVI, VOB to MOV, F4V to MP4, VOB to FLV, etc. Also, it helps you convert video to portable devices directly, including Android devices, iOS devices and Windows devices. What's more, this Mac F4V to MP4 converter allows you to set video and audio parameters for the output MP4 files, so you could be assured of getting more suitable MP4 video files without any quality loss. And it also has amazing features in editing video including trimming, cropping, adding effect and so on.

As an easy-to-use program, you could just download and install Leawo Video Converter for Mac for use (If you are Windows users, switch to its Windows counterpart and easily convert F4V to MP4 on Windows). After the installation, simply follow the step-by-step guide below to learn how to convert F4V to MP4 on Mac.

Guide on how to convert F4V to MP4 on Mac with Leawo Video Converter for Mac:

Step 1: Import source F4V videos to the program

Launch Leawo Video Converter for Mac, enter the video converting module by clicking on "Convert" button on the menu. Now click on the "Add Video" button to browse and select source F4V videos for importing, or directly drag the source F4V videos to the converter for importing. You can combine multiple F4V videos into a single file by clicking on the blue "Merge all files into one" button on the rightmost of the window, edit the loaded F4V videos, add 3D effect, etc.


Step 2. Set MP4 as output format

After importing source F4V files, click the format button right before the big green "Convert" button to open a drop-down box and then select "Change" option to enter the Profile window, where you can open "Format > Common Video" group and select MP4 Video as output format.


Optional: If you're not satisfied with original video, you can re-open the drop-down box and select "Edit" option to enter the Profile Settings panel, and then you can adjust the video and audio preset parameters like video codec, bit rate, aspect ratio, quality, frame rate as well as audio codec, audio quality, audio bit rate, sample rate and channel.

Step 3. Set output path and convert F4V to MP4 on Mac

After finishing all the settings, you can click on the big green "Convert" button to open a sidebar where you can set output path under the "Save to" box for containing the converted video files. And then click on Convert button below to start converting F4V to MP4. The conversion process will be complete in minutes.


Part 3: Convert F4V to MP4 on Mac with Aimersoft Video Converter for Mac

In addition, Aimersoft Video Converter is also assured to be the fast video converter for Mac and Windows. It supports a large number of media formats so that you can convert between hundreds of video and audio formats, includes the popular MP4, MOV, F4V, FLV, MP3, etc. as well as the uncommon VOB, TS, ASF, SWF, 3GP, Divx, and so on. It can work as an F4V to MP4 converter that can simply convert F4V to MP4 on Mac while keeping the same quality. It also works as a video downloader that can download videos from more than 1000 sites, including YouTube, Vevo, Facebook, etc. as well as a video editor that offers video editing options with features like cut, crop, cut, and others. After downloading the Aimersoft F4V to MP4 converter for Mac, install and run it. you can convert F4V to MP4 within just a few clicks.

Step 1. Add F4V files to Aimersoft F4V converter
Launch the program on your computer to enter converting module, click om "Add Files" tab to explore and select the source F4V files to the converter.  
Step 2. Select MP4 to be output format
Open the "Convert all files to" drop-down window, and then click on the "Video" tab to select MP4 and resolution for output.
Step 3. Convert F4V to MP4
You can choose the output destination to save the converted video if you don't want to store it on the default folder. And then click on "Convert All" button to start F4V to MP4 conversion. After a while, the conversion will be complete and you can find the converted videos under the Converted tab.


Part 4: Convert F4V to MP4 on Mac with FreeConvert

Except for converting F4V to MP4 by using the professional F4V to MP4 video converter, you can also take advantage of online video converter to easily convert F4V to MP4. As a free online file conversion tool, FreeConvert can convert all types of files, including image, video, document, and music files from one format to another. Working as an online MP4 converter, it can convert more than 60 audio and video formats to MP4 format, including F4V to MP4, MKV to MP4, AVI to MP4, MOV to MP4, and many more. This MP4 converter works on any web browser on Windows/Mac, 100% free and fast. Follow the below guide to convert F4V to MP4.

Step 1. Click on the "Choose Files" button to browse and select your source F4V video files for importing. Or you can drag the source video files to the grey field for uploading. You can also import video files from Device, Dropbox, Google Drive or URL.
Step 2. Optionally change the Advanced Settings including video and audio options.
Step 3. Click on "Convert to MP4" button to start F4V to MP4 conversion.
Step 4. When the conversion is "Done", click on the "Download MP4" button to download the converted video.


Part 5: Convert F4V to MP4 on Mac with OnlineConvertFree

OnlineConvertFree is also an easy-to-use online file converter that is available in 15 languages. Used by tens of thousands of the users, it is also welcomed because the file conversion service has one of the largest lists of supported file types including documents, images, videos, audio, archives and books. Obviously, it is a popular free online MP4 converter so that you can convert F4V and many other common video files to MP4. It claims to delete uploaded video files instantly and converted files after 24 hours so as to keep your privacy. To convert F4V to MP4 on Mac with this online service, follow the step-by-step guide.

Step 1. Click on "Choose File" button to select source F4V file from your computer, Google Drive, and Dropbox. Or you can drag and drop F4V video files on the page.
Step 2. Select MP4 you want to convert as output format.
Step 3. Click on the blue "Convert" button to start converting F4V to MP4. After a few minutes, the conversion process will be complete. Download the converted MP4 video for playback.


Anyway, the professional video converter and online converter are both helpful to convert F4V to MP4. Leawo Video Converter for Mac and Aimersoft Video Converter for Mac can convert F4V to MP4 easily while preserving the original quality and customizing the video if you want without limits. Using F4V to MP4 online converter, it is totally free and you don't need to install any software or plugin. However, the online converter only supports limited video size. You can feel free to choose any solution mentioned in this post to convert F4V to MP4.