Video looks weird when burned on DVD

gordon_fan_24 · Post by **gordon_fan_24** » Tue May 17, 2005 8:31 pm

I posted this on the MF board, but since it involves VS9, I thought I'd post it here also. I created a 1 hr 45 min MPEG-2 in video studio 9, I intended to burn the video to DVD, the mpeg looked just fine on the computer, but when I burn it to the DVD, the video appears to lag behind in the motion (panning) sections. Creating a wavy video, like it is "dripping horizontally" (I hope I explained it well, it's kinda hard to explain.) I have never had this problem before in MF3, and I've burned many DVD's. What can I do to fix this ASAP, as I need this done by the weekend if possible.

CPU SPECS
3.4Ghz, 512mb RAM, 20gb free HD space (of 250), XP home.

Video Properties
720 x 480
NTSC drop frame 29.97 fps
bitrate 3906 Kbps

THoff · Post by **THoff** » Tue May 17, 2005 9:37 pm

That's a field order problem -- do a search.

Blue Canary · Post by **Blue Canary** » Tue May 17, 2005 9:56 pm

Gordeon_fan_24,

If THoff is correctly diagnosing your symptoms, I too have discovered a VS9 error with field orders. For me the DVD (PAL) files I have been creating from DV (PAL) files have been erroneously deinterlaced by VS9. Despite the final .mpg file being tagged as "Lower Field First", both fields have been made identical resulting in jerky motion and halved vertical resolution.

The same process in VS6 does not present this problem - they call it progress!

Anyone else experiencing field order or other interlacing problems with VS9?

THoff · Post by **THoff** » Tue May 17, 2005 10:26 pm

What do you mean by "erroneously deinterlaced"? Is your source material progressive?

Blue Canary · Post by **Blue Canary** » Tue May 17, 2005 10:49 pm

No, my source material is from a DV (PAL) Camcorder (i.e. lower field first). I capture as DV AVI (PAL) lower field first (i.e. standard DV AVI), the project properties correctly change to DV AVI PAL lower field first. When I save this project to DVD (PAL) MPEG2 (lower field first), whilst the .mpg file purports to be lower field first (in file properties), when played back (in WMP, PowerDVD 5, or in VS9 itself) the lower and upper fields are now identical. That is, instead of now having 50 fields per second (PAL standard) I now effectively have 25 frames per second (25 x 2 identical fields) - effectively progressive (even though it is still calling itself lower fied first). So it has taken interlaced source and made it progressive (whilst still calling it interlaced in the properties box) - i.e. deinterlaced when it shouldn't have.

gordon_fan_24 · Post by **gordon_fan_24** » Wed May 18, 2005 12:15 am

my video isnt jerky, or jagged, it looks like it is melting as the camera pans, is that a sign of a field order problem, i knew that jerkiness was, but melting?

THoff · Post by **THoff** » Wed May 18, 2005 4:04 pm

Horizontal tearing along vertical edges during horizontal movement is a field order problem. It occurs because the two half-frames are displayed in the wrong order.

martyl · Post by **martyl** » Wed May 18, 2005 10:03 pm

I had exactly the same problem in MF3, and I had the same problem trying to explain what the output was like! I spent many hours and DVD's, looking OK on the screen, but when burned, the output was terrible. I was told to capture all video to AVI instead of MPG, as my machine may be running too slow to capture to MPG. Since then it worked fine.

gordon_fan_24 · Post by **gordon_fan_24** » Wed May 18, 2005 10:46 pm

thanks for the replies, I am currently burning a re-rendered version at the proper field order, after looking at the properties further, I discovered that I rendered it at "frame based" not lower field first (what does "frame based mean?). If that fails, I will render to an .avi and go back to MF3 to burn.

THoff · Post by **THoff** » Wed May 18, 2005 11:23 pm

Frame-based means that you have one progressive (complete top-to-bottom) video frame instead of two interlaced half-frames that alternate in their display order.

Standard resolution broadcast TV signals are interlaced, and that's the format you should stick with when authoring a DVD. Computer monitors and some high-end TVs are progressive, but in the case of computer monitors, the DVD decoding software already performs the deinterlacing.

gordon_fan_24 · Post by **gordon_fan_24** » Thu May 19, 2005 3:14 am

ok, I rendered it as a MPEG-2 at 4000 VBR, quality setting at 100, and a 2 pass encode. Now the MPEG plays fine on the computer, but when I play it on a DVD, it no longer drips, and melts, is appears to be jerky, and almost like it dropped about 10 frames every second or so. Now that I've got one problem fixed, it's watchable, but not much. What can I do to fix the jerkiness. I used lower field first, because it was created from a mini-DV camera. (is that the right field order?)

gordon_fan_24 · Post by **gordon_fan_24** » Thu May 19, 2005 8:09 pm

any ideas? should I be using upper field first for DV footage?

Blue Canary · Post by **Blue Canary** » Thu May 19, 2005 8:19 pm

No, Lower Field First is the one for DV normally.

Blue Canary · Post by **Blue Canary** » Thu May 19, 2005 8:33 pm

gordon_fan_24, I see you are still trying to get help. I am unclear about your route from DV to disc - you mention MF as well as VS9.

I assume you are already following the advice given in the "Announcement" at the top of this VS forum regarding process paths through VS that seem to work.

For example, I assume you are using Share, Create Video File to convert the DV in your timeline into a DVD .mpg file. I assume you are then ensuring you have nothing in your timeline before selecting "Create Disc" and are selecting "Do not convert compliant..." in the Create Disc step.

Beyond this I can't think of anything. Anyone else?

gordon_fan_24 · Post by **gordon_fan_24** » Thu May 19, 2005 9:20 pm

I edited the footage in VS9 and rendered to a complete MPEG-2 at 4000 kbps VBR, I used MF3 to burn, not the create disc in VS. Also, I realized today that a small portion of the video is a .mov that I imported (I've been working on this project for a long time, and I forgot that one video file that is in it), I knew that .mov wouldn't work in VS7, but it imports in VS9, could that be my problem. If it is, can anyone recommend a free-ware program that will comvert .mov to .avi, or .mpg. The .mov are NOT a moviemode from a still camera, it is about 10 mins that I exported from AVID to use in VS with this project.