I have problems with bad picture after editing in sony vegas 6. First, I get videos from camera using TV capture card and picture is ok. For video editing I use sony vegas 6 and render my videos using divx 6.8 pro codec, with this settings:



And I get video bigger than source file, with low quality
Information about video:
Source (I use AVIcodec tool to get this info):
10799 Kbps, 25.0 fps, 704*576 (4:3), MJPG = Motion JPEG
Edited file:
1390 Kbps, 25.0 fps, 720*576 (4:3), DX50 = DivXNetworks Divx v5
Here is simple of videos:
Source:

Edited file (also bigger):

I tried to use multipass but this don't help me