Someone gave me some DVDs where he burnt some videos on them by himself. My Ubuntu installation does them not recognize at all.
"Normal" commercial DVDs I am able to play. I have no real clue where to start. How can I find out what is on the DVD? What may I miss?
I installed the ubuntu-extras and run css.sh. And as said, most DVDs work...
I found out that the DVDs are not finalized
I tried to get the data by using "dd", "ddrescue", "dvdisaster"... nothing worked!