[MEncoder-users] Green boxes on non-computer DVD player

[Duncan Webb]

Nico Sabbi wrote:
> Eli Billauer wrote:
> 
>> Hello,
>>
>> I'm using mencoder to author an MPEG2 DVD (together with dvdauthor).
>> Playing the DVD disc on a Hitachi DVD/Video player, I get groups of
>> scattered green boxes in sporadic flashes, in particular when the
>> scene shifts quickly (when the frame changes completely, and also when
>> small regions change). This artifact tends to happen more in the
>> bottom half of the viewed frame. On a normal movie, this happens every
>> 30 seconds or so. Mplayer plays the same MPEG stream perfectly.
>>
>> Other than this, a complete 90-minutes movies plays perfectly both
>> with mplayer and the Hitachi machine.
>>
>> The green box patterns are exactly repeatable between two discs burned
>> from the same ISO image (same patterns on the same frames).
>>
> 
> /me too on a particular player I happened to test, although I found
> neither the cause nor the solution.
> I would describe the problem as "green horizontal sequences of
> macroblocks", especially
> in the right portion of the image.
> It seems to me that either the dvd reader has a buggy decoder (not to be
> excluded)
> or there's some strange uncompliance in lavc's encoder.

By chance are you using an ivtv card to record the mpeg movie?

If you are this could be caused by embedded vbi data, this is what I
found when using xine with pvr://

Duncan