im happy with the quality of vcds im getting by burning mpeg-1 in ulead video studio with one exception. every time something moves on screen, the object has jagged vertical lines (i think ive heard them called jaggies?) around its edges. how can i solve this problem? a different encoder? a filter? thanks...

-- noah james (secondtry35@hotmail.com), February 26, 2003

Answers

oops, i meant *HORIZONTAL* lines. any ideas?

-- noah james (secondtry35@hotmail.com), February 27, 2003.

Do you mean "macroblocks", which are squares you see in VCD during fast movement or do you really mean jagged vertical lines? Can't help you with jagged vertical lines. If you mean macroblocks, TMPGenc's advanced "noise reduction" filter can be helpful at reducing macroblocks, but it will make your encodes literally take days instead of hours. VCD has pretty low bit rates, so it's normal to see macroblocks during fast motion scenes.

-- Root (root@yahoo.moc), February 27, 2003.

you can't get rid of them, they're caused by the low resolution of VCDs. Try SVCDs, or XVCDs at 704x480 if you want to get rid of them.

-- (root@localhost.com), April 05, 2003.

The lines you are talking about are horizontal lines across the screen where each line of picture is displaced. ie edges are jagged. This appears to be a fields order problem. I often get it. At the moment MPEG 1 is fine, but MPEG 2 is bad.

I think my AVI file does not have the fields order specified (maybe a camera issue) and the codec then does not process correctly.

Any ideas??

-- Lloyd (mbu_scotty@optusnet.com.au), April 12, 2003.

on at least two occasions, converting quicktime (newer version; forgot which one, though) to mpeg-1 with tmpgenc, i had a momentary, green vertical line sort of tear out of the picture. more significant than this was the total absence of audio, but i'm just guessing the latter had to do with the particular qt codec required--quicktime obviously has compatibility issues, as older qt/mov material played & converted well, and with audio! no, i don't know the reason for the green line.

-- jim thompson (alterego100usa@yahoo.com), September 22, 2003.