How can I take off this dirt and scratches?

[VALiKOV]

Hi, I'm trying to improve the quality of some anime series but I've come across a problem I can't solve. The source is a DVD R2J which has been telecined into 2:3 pulldown but the real problem is in the dirt and the scratches that appear in all scene changes. This appears first at the bottom as a black band then, although this still hasn't disappeared, some white analog dirt appears on the top. This process takes about 3-4 frames. I don't know what this dirt is and therefore I don't know how to deal with it. It seems the studio has passed the analog material (like VHS) to DVD. Here's is the pic of the original DVD with the full sequence of the process:

http://img641.imageshack.us/img641/7716/unled3800.th.jpg (http://imageshack.us/photo/my-images/641/unled3800.jpg/)

How can I solve this? Which plugins or scripts can I use?

Thanks a lot.

[mastrboy]

those scene chance "cigarette burns" are quite common on older anime releases, and there are multiple ways of dealing with it:
1: The most time consuming way: manually going through the frames and replacing it with a good copy (for example with freezeframe)
2: Writing an automated scene-chance detection / freeze-frame script
3: Writing a analyze script that logs the scene changes, then verifying them and writing a script that fixes the broken frames..
4: Figuring out a solution that would decimate the end and start frames of a scene-chance, (tdecimate ovr file?)
I have tried to deal with the same problem before and came up with the following solution: http://forum.doom9.org/showthread.php?t=161046

The more experienced doom9 users could probably help you out more ;)

[VALiKOV]

Thanks for your answer, but I don't think that freezing almost 5 frames were the solution because I'll lose the dynamism of the sequences. Anyway I'll check out your script :thanks:.