DVD plays funny

[Liquidant]

I recently made a dvd for a friends wedding using Vegas Video 5 and DVD Arcitect. the problem i'm getting is the actual wedding footage has a very noticable shake / blur when the camera pans around or when people are moving. I've checked the original MPEG file which plays ok no blur and the authored DVD plays ok when I play it in WINDVD. there is some more footage on there like the speeches and some other stuff that plays fine. Is this an authoring problem or a burning problem.

my current burner is an LG GMA-4020b which has been burning DVDs fine, this is the first time I have come across this problem and would like to get it sorted as the DVD was supposed to be my wedding present to them.

hope you can help

Liquid

[Tommyknocker]

I can think of two things yo make want to try. First, increase the bit rate to keep up with images so they want blur. Second, once you have the DV transferred to your system, try the DeShake filter with VDub.

[Liquidant]

Thanks for the advice. I'll try a higher bitrate.

but would that really make a diffrence considering the MPEG file does not jerk around and the authored DVD on the hard drive plays fine.

I'll still give it a go and I'll also burn the file again but i'll author with TMPG DVD author and see if i get jerking and blurring on that.

[junkmalle]

You may have reversed the field order or deinterlaced somewhere along the way.

[Liquidant]

so i guess i would be worth running the file through TMPGenc and try it again. you may be right as i'm not sure what settings i used in vegas video, apart from the auto settings i selected DVD PAL

[junkmalle]

When you watch DVD on the television you see 60 fields per second, not 30 frames per second. By the time a field has started drawing the previous field has faded away. If you have the field order wrong you will see every other field in the reverse order. Instead of seeing (using single digits to represent consecutive fields):

1 2 3 4 5 6 7 8...

you will see

2 1 4 3 6 5 8 7...

This is a problem because the pairs of fields that make up a frame were not taken at the same time, they were taken at 1/60 second intervals. Anything that moves will jump back and forth with each field. From your desctiption it sounds like this is what you are seeing.

Why don't you see it on the computer monitor? Because WinDVD deinterlaces the video on the fly. Basically it just blurs pairs of fields together into frames.

[Liquidant]

Thanks for the explination it makes a lot more sense now. I had a look at the guide on interlace and de-interlace on digitalfaq.com

and it was just as you said I'll re-do the video and make sure it's interlaced this time and let you know how it goes.


Thanks again really apperictiate it

Liquid

[Liquidant]

Well I gave it a shot but my final DVD is still shaking.

I'm now confused on which should be used.

Interlace, Upper Field first

Interlace, Lower Field First


It appears that the actual footage i have is Lower field first.

The Credits i made for the end are Upper Field First.

I have Rendered my edited footage with Vegas Video in both
PAL DV AVI, PAL DVD complient MPEG and even used TMPGEnc to convert the AVI to DVD complient MPEG.

Authored in both DVD Arcitect and TMPGEnc DVD auther


where have i gone wrong.

the actual captured footage was from a VHS tape made in rhodes copied onto a Standalone DVD player so as to put it on to the PC

thanks in advance

a confused and frustrated Liquidant

[junkmalle]

I don't know Vegas but most programs let you specify the field order for both the input files and the output file. Make sure all are set correctly. You may have to run some test with short clips and RW disks until you get things sorted out.