Burning data CD using brasero get stuck at 100% and the dialog box only show Creating image checksum, empty progress bar, and a cancel button, and the disk is not spinning anymore in my cd writer. Simply click cancel will make the cd blank, i have try with some new an used CD-RW disc but stilk no luck. I'm on Raring.
Just disable the checksum: Open Brasero > Edit > Plugins > Uncheck Image Checksum.
Install cdrdao and this should solve the problem. Unfortunately, it can't solve it in the middle of the burning process.