@NN:
1) is feasible and easy enough
2) is also feasible, but not really justified, all you have to do is press "Cancel" and then "Clear"
3) is relatively hard, but I'll see what I can do (I had the same problem)
4) you're probably encountering ths problem because you're reusing character matrices from other DVDs, instead of making new ones
. That's ok in most cases, but you should increase the OCR sensitivity when you get these errors.