VOB to ASF - Convert video online

Conversion Results:
# Output File Source File Action

How to convert VOB 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.

VOB vs ASF:
Name VOB ASF
Full name Video Object Advanced Systems Format
File extension .vob .asf
MIME video/dvd, video/x-ms-vob video/x-ms-asf, application/vnd.ms-asf
Developed by DVD Forum Microsoft
Type of format Media container Digital container format
Introduction VOB (Video Object) is the container format in DVD-Video media. VOB can contain digital video, digital audio, subtitles, DVD menus and navigation contents multiplexed together into a stream form. Files in VOB format may be encrypted. 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 Files in VOB format have a .vob filename extension and are typically stored in the VIDEO_TS directory at the root of a DVD. The VOB format is based on the MPEG program stream format, but with additional limitations and specifications in the private streams. VOB files may be accompanied with IFO and BUP files. These files respectively have .ifo and .bup filename extensions. 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 MPlayer, VLC media player, GOM player, Media Player Classic Windows Media Player
Sample file sample.vob sample.asf
Wikipedia VOB on Wikipedia ASF on Wikipedia