Opening BU Files

The BU file type is primarily associated with Smart Viewer.

BU	File extension: BU
	File type:	surveillance video

What is a BU file

BU files mostly belong to Smart Viewer by Samsung. BU file extension is mainly associated with video footage extracted from Samsung surveillance system Digital Video Recorders (DVR). Such BU files contain video streams, audio streams, and metadata stored in Samsung's proprietary video format which can be played with SmartViewer. Also, SAP, a business management software stores backup data in BU files. Pegasus Mail, an email tool for Windows operating system stores data used to parse the HTML content of emails in temporary files that have BU file extension.

How to open BU files

You need a suitable software like Smart Viewer to open a BU file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your BU file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a BU file directly in the browser:. Just drag the file onto this browser window and drop it.

Online BU Text Viewer

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Programs that open and convert BU files:

Smart Viewer by Samsung
See the previous paragraphs to learn more about the main application. BU files are often referred to as Smart Viewer videos because this type of file is primarily created or used by this software.
Pegasus Mail (temporary data) by David Harris
Pegasus Mail is a Windows-based email software. This program uses BU files to store temporary data when parsing HTML messages. If Pegasus Mail is not active, these files can be deleted. Pegasus Mail should automatically delete them. This file format is classified as Data.

BU format details:

The file format determines how the data is stored in the file. The initial characters of a file are called signature, sometimes also referred to as "magic bytes". The signature can be used to infer the file format. Frequently, however, one file extension is used by different programs for different file formats, and one file format for different file extensions. Exact knowledge of the format is therefore important in order to solve problems occurring in files. Below is our analysis of the BU files:

The BU file ending is used by different programs with different formats. The file formats most commonly found in BU files are:

60% of all BU files use the same file format, which can be identified by the letters "00 00 01" at the beginning. The contents of these files cannot be read by a human; only a computer program can interpret the data. BU files can be up to 2 GB in size, but are often around 29 MB - 1 GB. The file type is a fairly new file format. Examples of file names are 01_001.bu or 02_001.bu.
25% of all BU files start with the bytes 01 00 00, which are crucial for this file format. The content consists of illegible binary data, which can only be read and interpreted by the associated programs. The files are on average 200 MB in size and range from 16 MB to 1 GB.

All other BU files (15%) have no consistent format, often e.g. RTF. Tagged as dems. If you want to find out what your BU file contains, drag and drop it onto this page.

Technical Data for BU File Extension

File classification:

Video

Related files:

db2, eve, dvr, mp4, bup, sec, cme, dat, rf, zip, vcex

The following listing is compiled from the database produced by the 'Associate This!' program, selected data from the main FILExt database and file extension information submitted by users.

ProgramID: DoubleImage.Profile
EXEFile: %ProgramFiles%\Host Interface International\Double Image-O\Double Image-O.exe -o:%1

a bu surveillance video is a special file format by Samsung and should only be edited and saved with the appropriate software.

How to solve problems with BU files

Associate the BU file extension with the correct application.
Update your software that should actually open surveillance videos. Because only the current version supports the latest BU file format. Search, therefore, e.g. on the Samsung manufacturer website after an available Smart Viewer update.
To make sure that your BU file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
Click here to open your .BU file online - secure, fast, and no downloads needed.