File Type 1 Generic IconBackup File
File Format Standard
Usage Open manually
Rank ★ ★ ☆  Average

Backup of a data file created automatically by various applications; generated in case the program crashes or the original file becomes corrupt and needs to be restored.

The ".bup" extension is often added after the original file extension. In order to open the file with the correct program, the ".bup" extension may need to be removed.

Open With

IconOpen with original program

Updated April 3, 2009
File Type 2 Generic IconDVD IFO Backup File
File Format Standard
Usage Runs when opened
Rank ★ ★ ★  Common

Backup of a .IFO file from a DVD video disc; stores information about the content of the DVD; may be accessed if the VIDEO_TS.IFO file cannot be read; like IFO files, BUP files are not encrypted.

Open With


IconCyberLink PowerDVD

IconCorel WinDVD


IconApple DVD Studio Pro

IconRoxio Popcorn

IconRoxio Toast

Updated August 3, 2010