Before you go further, perhaps the message is in error or the disc is. Try burniing the project to either an ISO file or Folder set. That would tell you if the project is OK.
You can the burn the BR from the ISO or folder using the trial version of Power2Go 11 or IMGBurn. There is no need to run your project back through the encoding.
Here is the information on
Power2GO 11. Be careful with IMGBurn, it wants to add on some junk programs ut it works well and is free.
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BoilerPlate: To posters who ask for help -- it is nice to thank the volunteers who try to answer your questions !
Anything I post unless stated with a reference is my personal opinion.