When writing a DVD+RW (with verifying) I accidentally clicked OK in the dialog of the tray-cycling before I actually closed it. This caused my dvd to be unreadable and unwritable.
I was using 2.5.5.0 at that time, and when trying to do a full erase it asked what type it was. I selected DVD+RW and it started erasing, but very very slowly. I suppose it was somehow trying to low-level format it? I interrupted the erasing process cause it would take to much time for that moment.
Now I upgraded to 2.5.6.0, it still asks me to select what type it is, but it doesn't start erasing anymore.
Now I wonder if this is a but in the new release, or my dvd is completely broken now, or it was completely broken in the first place already.