Hi,
I created a video file using OpenShot on my openSuse 15.1 machine. Now I tried to make a data DVD with this rather big mp4 file (3.8 GB) using k3b.

The first two attempts to burn the DVD resulted in an error message. I had to throw the DVD away. It worked with the third blank DVD. The data check at the end of the burning process showed no errors.

But after I insert the DVD into the drive, the DVD is not recognized. I tried on four computers. Nothing happens after inserting the DVD.

Sorry, I have not much experience in burning DVDs. Can anyone give me a hint, what can be the cause of this.