GOP Closed followed by repeating TFF

[signal]

Apologize for my ignorance on this question.

DGIndex150rc2 added the GOP Closed information to Parse D2V.

I have a few film based Anime DVD's where the Force Film option would be perfect except at one point this is seen mid playback (I narrowed it down to view):
D2V Parse Output

Encoded Frame: Display Frames....Flags Byte (* means in 3:2 pattern)
--------------------------------------------------------------------

[Forced Film, ignoring flags]
[GOP: open]
[Clip is BFF]
0 [B]: 0,0......................1
1 [B]: 1,1......................2 *
2 [I]: 2,2......................3 *
3 [B]: 3,3......................0 *
4 [B]: 4,4......................1 *
5 [P]: 5,5......................2 *
6 [B]: 6,6......................3 *
7 [B]: 7,7......................0 *
8 [P]: 8,8......................1 *
9 [B]: 9,9......................2 *
10 [B]: 10,10...................3 *
11 [P]: 11,11...................0 *
[GOP: open]
12 [B]: 12,12...................1 *
13 [B]: 13,13...................2 *
14 [I]: 14,14...................3 *
.
<snip>
.
[GOP: open]
36 [B]: 36,36...................1 *
37 [B]: 37,37...................2 *
38 [I]: 38,38...................3 *
39 [B]: 39,39...................0 *
40 [B]: 40,40...................1 *
41 [P]: 41,41...................2 *
42 [B]: 42,42...................3 *
43 [B]: 43,43...................0 *
44 [P]: 44,44...................1 *
45 [P]: 45,45...................2 *
[GOP: closed]
46 [I]: 46,46...................2
47 [B]: 47,47...................2
48 [P]: 48,48...................2
49 [B]: 49,49...................2
50 [B]: 50,50...................2
51 [P]: 51,51...................3 *
52 [B]: 52,52...................0 *
53 [B]: 53,53...................1 *
54 [P]: 54,54...................2 *
55 [B]: 55,55...................3 *
56 [B]: 56,56...................0 *
57 [P]: 57,57...................1 *
[GOP: open]


All other GOP's are open and this is the only closed one that shows up in the whole VOB.

I'm wondering if the single GOP Closed and the field "corruption" that occurs after it is "normal"?

[Guest]

I don't know what you mean by "normal". I also don't know what you mean by "field corruption" in this context.

What you have shown is legal. It's not unusual to see a 3:2 cadence altered like that. Often it is done during a period of blackness.

[signal]

The single GOP Closed followed by the 3:2 cadence change didn't seem normal as it was the only one found in the VOB and caused a frame problem just after the close.

In terms of "normal" I was curious if this type of condition in a non-black frame section is, well, "normal".
Thank you for clarifying the legal aspect of it.

In terms of "field corruption" (not sure what the proper term would be), the combing of a frame does occur.
I'm including two screen caps as an example of the combing.

Both are from separate VOB's from the same anime episode.
The 1st is from the parse d2v above.

As it's a single frame, is there a way to handle this without going interlaced and using deinterlacing filters in AVISynth?
Or is that the preferred option?