a/v sync - computer plays ok, pmp not

[adom]

original source is from HD PVR (*.ts) recorded from tv (1080i50) - MTV nHD.

What I describe below is my own approach and it may be 100% wrong as I do not know too much about it.

After recording when I play back the file I got the information that it is 25 fps and interlaced - thats correct.
But I noticed that some music videos played on MTV nHD are not interlaced (2 fields responsible for frame are almost identical and don't create "comb" effect at all) - I checked i t with avisynth separatefield() command.

Since my goal is to make this music play on my portable pmp (cowon q5) I have to convert it to xVid - resolution 800x448.
And since these fields are almost identical I decided to do this as follows:

DirectShowSource("e:\_libs\Videos\_tv\_alexisJorda n_goodGirl.ts")
assumeTFF()
separateFields()
selectOdd()
crop(8,4,-0,-4)
Spline64Resize(800,448)

and when I play the resulting clip on my computer everything is fine but when playing on pmp audio is delayed.

[adom]

small correction (I tried these conversions so many times that I alredy lost myself

there is no a/v sync problems on my pmp only if I convert songs which were recorded in 720p (set on satelite tuner) - then I get 50fps progressive and this material I can convert with following script:

DirectShowSource("e:\_libs\Videos\_tv\_alexisJorda n_goodGirl.ts")
crop(8,4,-0,-4)
Spline64Resize(800,448)

and pmp plays fine - no a/v delay

I got problems (a/v delay) when converting from 1080i (set on sat tuner).

Playing after convertion in vDub there's small a/v delay even on my computer - but on pmp the delay is much greater.

[adom]

never mind.

I used vDub + filters directly (no avisynth's scripts) and there's no a/v delay anymore.

[adom]

no... it's still not right...

could anybody take a look at the file in attachment - it is 16 sec long video which I cut using videoRedo
I need it as xvid:
video: 800x448, 25 fps, bitrate <= 4000,
audio: 48kHz, ac3, 2 channels, max 196 kb

whatever I do (convert) audio is always delayed when I play on my pmp.

Thank You very much for any help.