"VTS_01_0.IFO should be identical to VTS_01_0.BUP"

I got this when trying to burn files I made with Nero Vision Express. What does it mean and how can I fix it so I don't get the error?

 

Delete VTS_01_0.BUP, after that make a copy of VTS_01_0.IFO and rename it to VTS_01_0.BUP. Those *.BUP files are just backups of corresponding *.IFO files so they should be identical, like the program says.

 

Problem is that it was the .bup file that was 16kb or whatever and the .ifo showed up as 0kb. I deleted the files and I'll just try again later.

 

I'd say try ripping the DVD with DVDFab Decrypter (it may not have ripped right the 1st time), that should fix it.

 

Then you should delete the ifo and make a copy of the bup and rename it ifo.

 

that didn't work either. I forgot what the error message was. I just gave up on it.