M4V to ASF - Convert video online

Conversion Results:
# Output File Source File Action

How to convert M4V to ASF:

1. Click "Choose Files" button to select multiple files on your computer or click the dropdown button to choose online file from URL, Google Drive or Dropbox. The source file can also be audio format. Video and audio file size can be up to 200M. You can use file analyzer to get source video's detailed information such as video codec, duration and bitrate.

2. Set target video format, bitrate, aspect ratio, frame size and frame rate. All audio streams will be removed if "Mute" option is checked. The target video format can be MP4, AVI, FLV, MPG, MKV, WMV, M2TS, WEBM, ASF, MOV, M4V, RM, VOB, OGV or GIF.

3. Click "Convert Now!" button to start batch conversion. It will automatically retry another server if one failed, please be patient while converting. The output files will be listed in the "Conversion Results" section. Click icon to show file QR code or save file to online storage services such as Google Drive or Dropbox.

M4V vs ASF:
Name M4V ASF
Full name Raw MPEG-4 Advanced Systems Format
File extension .m4v .asf
MIME video/x-m4v video/x-ms-asf, application/vnd.ms-asf
Developed by Apple Inc. Microsoft
Type of format Video container Digital container format
Introduction The M4V file format is a video container format developed by Apple and is very similar to the MP4 format. The primary difference is that M4V files may optionally be protected by DRM copy protection. Apple uses M4V to encode video files in its iTunes Store. Advanced Systems Format (formerly Advanced Streaming Format, Active Streaming Format) is Microsoft's proprietary digital audio/digital video container format, especially meant for streaming media. ASF is part of the Media Foundation framework.
Technical details Unauthorized reproduction of M4V files may be prevented using Apple's FairPlay copy protection. A FairPlay-protected M4V file can only be played on a computer authorized (using iTunes) with the account that was used to purchase the video. The format does not specify how the video or audio should be encoded; it just specifies the structure of the video/audio stream. This is similar to the function performed by the QuickTime, AVI, or Ogg container formats. One of the objectives of ASF was to support playback from digital media servers, HTTP servers, and local storage devices such as hard disk drives.
Associated programs Apple iTunes, Apple QuickTime Player, Media Player Classic, K-Multimedia Player, RealPlayer, Zoom Player, VLC media player Windows Media Player
Sample file sample.m4v sample.asf
Wikipedia M4V on Wikipedia ASF on Wikipedia