I also received this error but under different circumstances. I created DVD-DL files from an MKV with AC3 audio (7.01 GB / 7,358,522 KB) using TFM (The FilmMachine). Everything comes out OK and the result is a VIDEO_TS folder (8.59 GB / 9,229,989,888 bytes) containing the following:
I load the files into (AWESOME!) ImgBurn and hit the calculator button resulting in this:
I hit "Yes" and I get the final message:
Which I have been reading about how to fix this but I think I have a size problem to fix first. Finally this is what the ImgBurn calculation shows:
So, assuming ImgBurn is calculating this properly, I guess I have to go back to the creation of my DVD-DL files to straighten this out. Any input?