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View Full Version : Observation on playback quality


alex jackson
9th June 2002, 20:18
Hi all.

I have been messing around with the pod race scene from SW phantom menace (my standard clip for comparisons etc.) and have spotted a few things which may or may not surprise. I have the clip as a vob which contains only the video and english audio. I have played it back in PowerDVD XP and windows media player using the Cyberlink DVD decoder. The quality in windows media player is by far superior than in PowerDVD which seem odd to me since it seems to be using the same decoder (as shown in properties). The edges of curved objects in PowerDVD show quite ugly stepping.

Also I have made an Avisynth script from a d2v file for the same vob. Using simple resize, no crop and SimpleResize(1024,576) to give the same final resolution video whem played in win media player, the quality is again clearly better.

No question really, just that the commercial software seem to do a less than great job.

Didée
9th June 2002, 21:42
1.) Was it an NTFS or a PAL DVD
2.) What video setting was active in PowerDVD: bob, weave or auto?
3.) When playing in M$ MediaCrumbler (-> which version?), were those deinterlacing settings available, and if yes, how were they set?

In case of PAL DVD, from my experiences, video deinterlacing should be *forced* to weave in PowerDVD. Otherwise, auto switches mostly to bob, which is of course minor.

BTW, wrong forum (!?) for this post

alex jackson
9th June 2002, 22:11
Yeah you are right. Weave looks much better. Ta for the advice. I am using media player 6.4 and the setting are available. It was on weave there. Is is the PAL version (NTFS?).

Wasn't sure which forum to go for. I did use Avisynth so technically....