Please try the tips below first:
1. Please click top right Settings>Copy & Burn of Leawo program to change Burning Engine, then try again.
2. Or please burn to ISO File with Leawo, then burn the ISO file into disc using the third party burning program such as Nero or ImgBurn.
If still does not work, please contact us with the following information:
1. Please click top right Help center of Leawo program to submit Bug Report with details.
2. Please let us know if you can burn to ISO file with Leawo and burn the ISO file to disc by the third party burning program.
3. If you do not mind, please also send us the source file(s) you loaded to Leawo.