BUP file extension is used by backup files on DVD Video disks. These files contain the same data as File extension IFO files: subtitles, tracks, menus, chapters. DVD players fall back to reading data from these files in situations when IFO files are unreadable. Most common cause for this are scratches and other "tear and wear" of the optical media.
You cannot open BUP files by any program (except in binary format viewers) but disks containing these files can be played using DVD playback software such as Windows Media Center, PowerLink DVD Player etc. These files can also be created by DVD authoring software.
How Can I Open BUP File on Windows
We researched and learned that the best way to open BUP file is to find a BUP file in question in Windows OS File Explorer and double click on it to launch the corresponding application.
If a BUP file is not opened in an application and you instead get a "Windows can't open a file" error message you should try looking for an application which can open the file in question.
If you know the application which can open BUP file then run it and see if there is a File->Open main menu option in the application.
If you don't know the application which function as BUP file opener then try to search online for "BUP viewer", "application to open BUP file" or "open BUP file" queries in the search engine you like.
Install the application you found and check if it can open BUP file
How Can I Open BUP File on Mac OS
We recommend to find a BUP file in question in Mac OS Finder and double click on it to launch the corresponding application.
If a BUP file is not opened in a Mac OS application and you instead get a "There is no application set to open the file" error message you can click on "Search App Store" in the error dialog and Mac OS will show you applications compatible with BUP file.
If you know the Mac OS application which can work as BUP file opener you can choose the "Choose Application..." option in the error box to associate the file extension and open BUP file in it.
If you don't know the application which can open BUP file then try to search for "BUP viewer", "application to open BUP file" or "read BUP file" queries in the online search engine you like.
Install the application you found and check if it can read BUP file
How Can I Open BUP File on Android
If you downloaded a BUP file on Android device you can open it by following steps below:
In the Android apps list on your Android device find "My Files" or "File manager" app and tap to start it.
Tap on "Downloads" folder inside the app.
You should see your downloaded BUP file in that folder.
Tap on the file. If Android device supports opening the file you downloaded it will open in the corresponding app.
If file does not open you can look for the corresponding app that can open the file by searching Android App Store for the "BUP".
If you cannot open the file with the apps from Android App Store it is possible that the file could only be opened on desktop platforms such as Windows or Mac OS. Try searching for "BUP viewer", "BUP file reader" online and see if any desktop applications can open it.
It is also possible that the file you downloaded is outdated and is no longer supported.
How to Open BUP File on iPhone or iPad
To open BUP File on iOS device follow steps below:
We advies to open Files app on your iPhone or iPad device. You can find it by swiping down on the home screen and typing "Files" in the search bar.
Tap on the Downloads folder on the Files app home screen.
You will see all files that you recently downloaded. Tap on the BUP file to view it.
If you have the right app that can open it it will automatically launch and open your file.
If you don't have the app which can open it you need to serch Apple app store for "BUP". This way you can find apps which can open BUP files.
If this doesn't help it is possible that your file could be opened only by the desktop application. To find an app which can open it on desktop look for "BUP viewer" or "BUP file" online in your favorite search engine.
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