SUMMARY *** NOTE: If you are reporting a crash, please try to attach a backtrace with debug symbols. See https://community.kde.org/Guidelines_and_HOWTOs/Debugging/How_to_create_useful_crash_reports *** I was going to do a test run of my Blu-ray data project which I then cancelled. I am sure to have ticked "simulation". Later I realized that the BD-R M-Disc has actually been written on and is not usable for my purpose anymore. STEPS TO REPRODUCE 1. I selected the option to burn an iso file to a 25GB BD-R M-DISC 2. ticked 'simulation' as I wanted to see how long the process might take 3. Clicked on 'Cancel' to abort simulated burning process after ~2 min. OBSERVED RESULT Some data was actually written on 25GB BD-R M-DISC EXPECTED RESULT No data should have been written on disc as it was supposed to be a simulation only. SOFTWARE/OS VERSIONS Linux/KDE Plasma: UBUNTU 20.04.4 LTS (available in About System) KDE Plasma Version: KDE Frameworks Version: 5.68.0 Qt Version: 5.12.8 ADDITIONAL INFORMATION BD-writer: ASUS-BW-16D1HT
As far as I know, a "simulation" feature is only a part of the standard on CD-R, CD-RW, DVD-R, DVD-RW, and HD-DVD. It seems not to be included DVD+R, DVD+RW, and Blu-ray discs. However, according to https://helpmanual.io:443/man1/cdvdcontrol/ , Plextor drives do support DVD+R writing simulation. One can assume this applies to DVD+RW as well. Nero has a warning that DVD+R writes might not be simulated.
On an additional note, always perform test burns on write-once discs using data you would have burned anyway. Writing junk data on write-once discs for testing is wasteful. I did it once using Nero DiscSpeed's testing feature to see if Nero's warning is just a bluff, because I could not imagine something as "simulated writing" not to work. But it wrote actual data. What I found out is that it writes the drive model at the end on DVD plus discs in a way only DiscSpeed itself recognizes it. Because only DVD-R and -RW (not sure about -RAM) store the "recorder information" (drive model) in a dedicated section.