Using dvd+rw-tools-7.0-3.fc7. $ dvd+rw-format -blank /dev/hdc * BD/DVD±RW/-RAM format utility by <appro.se>, version 7.0. * 4.7GB DVD-RW media in Sequential mode detected. * blanking .:-[ READ TRACK INFORMATION failed with SK=3h/ASC=57h/ACQ=00h]: Input/output error $ echo $? 0 $ Since it failed, it should have exited with non-zero status.
Created attachment 156413 [details] patch to exit with non-zero status when child process fails Fix attached.