[sschwar2]

Greetings,

I have been having problems with some movies that I am putting on to a DVD (G4-867 with Super Drive). All of the videos used on the DVD were captured via firewire in either Adobe Premiere for iMovie from a DV and a Digital High-8.

After all the video editing was finished in Adobe Premiere, I burned them using iDVD. On many parts of the videos, where there is drastic movements there is a weird trailing effect that occurs. Some white areas on the video are almost glowing, and go out of the lines and appear to almost be flashing white. When there is camera movement, the picture begins to become choppy as the camera moves.

I took the same video, and ran it through Cleaner 5, and exported it to MPEG for DVD Studio. When I burned the videos on DVD Studio the same problem would occur but seem to be less noticable (even they still can be seen)

No matter what I do, the video messes up on the TV. However, all the digital video files on the computer and the DVDs that are played on the computer play fine. As soon as they hit the standard DVD player and are outputted to a TV the trailing effects and choppiness occurs.

None of the movies that I created in Adobe After Effects do not have the problems with the video.

Anyone else seen this? Or have any suggestions for me?

Steve

[Finrock]

I think what is happening is a result of the encoding that iDVD is doing. In order to cut down on the amount of time it takes iDVD to encode a file into MPEG to write on a DVD, iDVD uses a static bit rate (I don't remember what off hand). Since all information is encoded at the same rate, iDVD can encode data very fast.

Variable bit-rate encoding is what takes so long when encoding to MPEG for DVD, but can be much more efficient, this is the way most commercial DVDs are encoded.

The higher the bit-rate, the better the quality, but it also takes up more space. The lower the bit-rate, the lower the quality, but you can fit much more video on a DVD. Apple chose the middle road (hence you can only fit 1hr of video on a DVD-R

So what you are most likely seeing are the artifacts left as the result of the encoding process.

Of course, it may be partly due to the way your camera encodes DV to your tape, and that has to do with the frame rate and the interlaceing that occurs between frames. I don't know enough about that to make an assumptiong, but www.2-pop.com might be able to offer some more advice.

-Finney