File with.BUP extension contains backup copy of IFO file for given DVD disc. BUP files are used when IFO files is corrupted.
Files with the .MKV extension contain video images, sounds or subtitles collected in a singular multimedia container. This format provides open specification, established in Russia, in the year 2002, in the Matroska project, led by Steve Lhomme.
After converting the file to the new format, you will be able to use other programs to support it. Keep in mind, however, that the BUP file after converting to MKV may differ slightly from the original. The most important information should be kept, but if you want the file after conversion from BUP to MKV to be the same, you have to do this carefully and choose the proper application from the list below.
There is no guarantee, of course, that the conversion will come up to all your expectations, but it will certainly help you. If, after all, the effect of converting BUP to MKV does not meet your expectations, you can simply try to find on the Internet a different version of your file in BUP format, properly converted to a MKV file by someone else. If this fails, use the information provided in the further part of the website.
If after converting the file BUP the desired result was not achieved, you can try to change the format of BUP file to other than MKV. On our website you will find more information on the following conversion options
Unfortunately, if after performing the two previously described steps (trying to find your BUP file converted by someone else, and the attempt to convert it to MKV on your own) you still have a problem with your file, then there are only a few solutions left. You can once again try to find and install an application that can open the BUP file in its original format (without conversion to MKV file). Such a solution will be difficult to implement, but it certainly will give the best result.