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View Full Version : Artifacts with NERO Recode AVC videos


zzspectrez
30th November 2005, 17:54
I am getting very strange artifacts on playback of my avc mp4 encodes. I am encoding from multiple DVD sources using NERO recode set to maximum Defiition - AVC fit to size of 2 gig.

On playback there are appear a random number of green and blue dots that flicker on and off. If you pause the video, the artifacts continue to flicker on and off and change position. If I do a screen capture through VLC media player, the dots are not present.

If I specify lower bitrate, say fit to CD then there are more artifacts whether full screen or windowed, Regardless of player used. If I use a high bitrate there are much fewer artifacts and the artifact do not appear on Full-Screen playback.

I do not get artifacts when I playback my XVID files I encode or when I use Recode to encode ASP. I updated my video drivers thinking that may be the problem. No difference. When the MP4 - AVC files are played on my laptop ( a different computer ) there are no artifacts.

I'm thinking there is some software conflict because I had a similar problem with my XVID playbacks a few months ago on the same machine. The problem was that the ffdshow codec was being used instead of the XVID codec. When I disabld ffdshow and used XVID codec everything was great.

I dont even know how to check which codec is being used for AVC videos.

Any sugestions?? :eek:

Any help, much appreciated.

zzSPECTREz

Sirber
30th November 2005, 17:56
I think your GPU is heating in WMR7/9.

Sharktooth
30th November 2005, 17:57
too much overclocked (or overheated) video card or defective video ram problem.

zzspectrez
30th November 2005, 18:06
The video card is ATI Radeon Dual Head card running two 17" LCD monitors... It's not overclocked. Running latest ATI drivers.

Is there a known way to verify if it is deffective card ( other then just swap card ) and not maybee somekind of bug in the driver or some software setting.. I tried turning down hardware accleration to no avail

I hope it isn't a bad card. I havent seen any reasonable dual head cards lately.

zzSPECTREz

Sirber
30th November 2005, 18:07
every radeon is dualhead :S

run "ATITool", just show 3D, if you have dots then your card overheat and will die in few weeks.