VMS 6a Plat - MPEG artifact and aspect ratio

lgarretson wrote on 1/18/2006, 10:20 AM
Hello All:

I've been a home user since Vid. Factory days, and I've always found the back posts on these forums to be a great resource whenever I've had a problem or a question. This one, I can't find any reference to.

I've always rendered my videos as .avi files before authoring them to DVD, but lately I've tried a few times rendering as mpeg-2 because I was trying to fit more on a disc and I didn't want to have to fiddle with the bit rate of the disc in order to make it fit. I've noticed that when I render a video to mpeg-2 in VMS, two things happen:

1. A transparent yellow line appears across the bottom of the video. This appears when I view the file in Wind Media Player, and when I burn it to a DVD and view it on a television (though it's a little less noticeable on the TV). It does not appear if I go back and view the file in the preview pane of VMS.

2. The aspect ratio of the video changes. It widens. This appears when viewing the file in Wind. Media Player. The image looks a little stretched. I can't really tell if it happens when viewing on a television. I don't get any letterboxing, but I can't really do a side by side comparison of mpeg and non-mpeg files like I can on the computer screen. This aspect ratio change also isn't really apparent when I view the file in VMS preview.

I'm using the DV-NTSC template when rendering MPEG, definitely NOT the widescreen. I've checked, and the pixel aspect ratio on all of these files (the MPEGs and the original AVIs) is the same (DV NTSC standard). I've got Maintain Aspect Ratio checked, and the "Stretch Video..." checkbox on the Render Settings dialog is Not checked.

Can't figure out what's causing this. Any ideas?

LG

Comments

No comments yet - be the first to write a comment...