duplicate frames, dropped frames (Xvid mencoder)

[smileyq]

I am currently using the elgato eyeHome to watch my movies on my home theater. I have noticed a couple of problems with some high action movies like Minority Report. With this movie there seems to be a lot of dropping frames (skipping and jittery). I am using the following settings. Is there something I should be doing to prevent this? I am also seeing the error duplicate frame sometimes in the hundreds on some of the content I encode. Does this mean there are problems?

Settings:

Video Codec: XviD [.AVI] (menucoder)
Video Size: 720 x 304
Cropping

Audio: Passthrough

Options:
High-Quality
Use B-frames
Two-pass encoding
Scaling method: bicubic splin
Keyframe interval: 240

Would using Trellis quantization have any benifit?

[major]

The option to check here is the framerate. Which is the source framerate and which is the destination framerate you used to encode?

[smileyq]

Major,

I am encoding from Video_TS folders of DVD's I've ripped using MacTheRipper and encoding them to XVID [.AVI]. Does this help any?

[major]

Which is the source framerate? PAL, NTSC or NTSC FILM? You may check that in the "Summary" tab.

[smileyq]

I am ripping it again so I can get you this information. I have already deleted the Video_TS folder. I'll let you know soon. It is either NTSC or NTSC Film for sure though. What difference would this make? I noticed that NTSC has more frames per second does this affect the encoder?

[smileyq]

The framerate of this VIDEO_TS folder (DVD) is set to NTSC (29.97).

[major]

Try to use NTSC FILM instead and check if it helps removing the duplicate frames.

[smileyq]

That seemed to have solved my problem major. I really appreciate all of your help. Is it a good rule of thumb that is I look at the info of the encoding and see a lot of duplicate frames listed in the verbose output that I am going to have this problem and should try some other options? Again thanks you are one of a kind.

[major]

When duplicate frames are created, it means that the target framerate is greater than the source framerate (more images per second are requested than they exist).