Methods to Convert ASF File to MP4 File

Anisha Rawat
Anisha Rawat | Published On - 24 Jun 2021 |

Read time 8 min

What is an ASF video file?

Advanced Systems Format or ASF is a multimedia file format that was created by Microsoft as part of their Windows media framework. ASF was explicitly designed for the streaming of audio and video content on the internet. That may be the reason behind it being previously known as Advanced Streaming Format and Active Streaming Format.

Why need to change an ASF video?

An ASF Video file is ideal when it comes to streaming content. However, it does come with a few setbacks

  1. Limited compatibility with media players
    ASF is the proprietary software of Microsoft. Hence, it has limited support to other multimedia playing platforms. But ASF files are well suited with platforms like Windows media player and VLC media player.
  2. Limited usage
    Since all the multimedia playing platforms do not support ASF video files, it has limited use only. So, it is not a widely popular video format.
  3. Low-quality video
    ASF video files are highly compressed, and so the quality of the video is usually low. It even has a relatively low-resolution limit of 352×288 because of its streaming requirements. Due to these reasons, there arises a need to change it into a better file format like the, which is widely used and even maintains the quality of videos.

What is an MP4 file?

MP4 or MPEG-4 Part-14 is also a digital multimedia container format popularly used to store video, audio, subtitle, and still image files.

What sets the MP4 file apart?

  1. Compatibility with multimedia playing platforms
    One of the major advantages of an MP4 file is its compatibility with almost all multimedia players and other devices, including VLC Media Player, Windows Media Player, GOM Player, Apple’s Quick TimePlayer, and iTunes.
  2. Wide usage
    MP4 video files are the video format preferred by most users. Due to its versatility, it is widely used.
  3. Helpful in streaming
    The MP4 files are also highly compressed but without losing the quality of the video, which makes it ideal for streaming videos over the internet.
  4. High video quality
    MP4 format offers high-quality videos even while streaming. It has a maximum resolution limit of 2048×2048.
    Due to these advantages, it is recommended to convert ASF into MP4 video files.


ASF video format

MP4 video formatv

Description Advanced System Format or ASF is a container file format that was specifically designed for the streaming of content. MP4 or MPEG-4 Part-14 is a multimedia container format used to store- video, audio, subtitle, and still image files.
Created by Microsoft MPEG- Moving Picture Experts Group
File extension .asf .mp4
Supported media players VLC Media Player
Windows Media Player
VLC Media Player
Windows Media Player
QuickTime Player
GOM Player
Usage The use of the ASF video format is limited. MP4 is a widely used and popular video format.
Maximum resolution limit 352 x 288 limit 2048 x 2048 limit

Methods to Convert an ASF File into a MP4 Video File

    1. Using online video conversion tools
      One of the easiest approaches is converting an ASF file into MP4 File using the video conversion tools available over the internet. Some of these online converters are-

      1. Zamzar
      2. Online Convert
      3. Covertia
      4. Convert File

      These converters have a simple method – just add the required ASF video, and it will automatically convert it into MP4. They can also be used to convert a MP4 file to other format.
      Make sure to have a stable internet connection and continuous power supply. However, online video conversion tools do raise an eyebrow due to these concerns-

      1. Lack of Safety- As you save the converted MP4 file on your system, it opens a door for various bugs and virus attacks.
      2. Privacy in question- Some tools ask the users to fill in their contact details, leading to bombarding the user with spam emails. Also, avoid working with online converters when dealing with confidential video content.
      3. Limit in file size- There is often a limit to file size while converting videos which is not suitable when converting large-sized video files.
      4. Quality loss- There is a huge possibility that the quality of the video gets degraded during the conversion process.
      5. Limited time of storage- Usually, the online tools let the user store the converted video file for only a limited period.
    2. Using VLC Media Player
      VLC Media Player is an open-source multimedia playing platform that is widely used across the world. It has a lot of unique features to offer including, converting one video file format into another.Follow these steps to convert an ASF video file into an MP4 file-

      1. Launch the VLC Media Player on your computer system.
      2. From the Menu bar, click on “Media” and then go to “Convert/Save”.Launch the VLC Media Player
      3. Using the “Add” feature, choose the ASF video file and then click on “Convert/save.”choose the ASF video file
      4. From the available options, choose “MP4”.choose MP4
      5. Select the destination to save the converted video file.Select the destination to save
      6. Click on “Start,” and it will start the conversion process.start the conversion process

Converting video files through VLC Media Player is suitable for small videos only as it can be done with much ease.

  1. Kernel Video Repair tool
    All other video conversion methods come with some drawbacks which may affect the video conversion. To convert the ASF file into MP4, a better approach is to opt for a professional tool like the Kernel Video Repair tool. It can even convert a MKV file to MP4. It offers an exclusive approach to every video, making sure that its quality does not get affected at all.


    1. Install the Kernel Video Repair tool on your system.
    2. Open the tool and select all the videos you want to convert by clicking on the plus sign “+.”Video Repair tool
    3. Choose the videos from anywhere on your desktop and click on “Open.”open the video
    4. The selected video will be displayed and now click on “Next”.display the video
    5. Tick the checkbox “MP4” and click on “Convert Now.”convert the video
    6. Choose a destination to save the converted MP4 video file.Choose a destination to save
    7. The conversion process will start, and the status will be changed from “Processing”to “Success.” Select “Save report to CSV,” and everything will be saved on the selected location.Save report to CSV

Why Kernel Video Converter tool is a premium tool

  1. There is no file size limitation.
  2. Simple interface and easy steps.
  3. It is supported by all Windows operating system versions.
  4. It has the ability to convert multiple videos at the same time.



Both ASF and MP4 are video container file formats. However, there is a huge difference between the two. And in many occasions, one may have to convert ASF files to MP4 format. An ASF video file can be easily converted into an MP4 file using 3 simple solutions – online video converters, VLC Media Player, & a professional tool like Kernel Video Converter.