WMV3 to h264 and skipping black frames

[Gieferg]

I need to convert video encoded with WMV3 to something playable on a blu-ray player, so h264 encoded MKV looks like the way to go. And there is a problem. I am using RipBot which is a nice tool for re-encoding but for some reason, when I try to re-encode this file, the output file is completely out of sync (A/V). And the reason for this (which I've had some hard time to find out) is because all completely black frames from opening (which appear between opening credits) were skipped during conversion. There are no more black frames, first title fades in, fades out, and immediately second title follows (and there were 1-2 second of black screen in original file between them). I cant use different source, so I must find a way to fix it. Maybe some other software? (Handbrake fails the same way, AutoMKV produces video plagued by constant stuttering no matter how many times i've tried with different settings)

Is there a way to re-encode it correctly using RipBot? Or should I look for something else?
Any ideas/sugestions?

[sneaker_ger]

You have to adapt your script:
FFVideoSource("source.wmv", fpsnum=x, fpsden=y) # (I don't know if ffmpegsource actually handles wmv files)
Or:
DirectShowSource("source.wmv", fps=z, convertfps=true)

z = framerate
x = framerate numerator, y= framerate denumerator (for example x=24000, y=1001 for 23.976 fps)

[Gieferg]

err...
I am afraid I am not advanced enough in this terminology to even understand what are you talking about.

I've never used any scripts (well maybe once, or twice, for avisynth but that was long ago, don't remember anything).

[Atak_Snajpera]

in ripbot
properties - show script

[Gieferg]

Ah, ok. Thanks a lot. Gra i buczy ;)