Jerky VCD

[roy_newell]

I have been downloading Xvids and divx's, all avi for a few weeks now, problem is I have converted them to VCD and put them on cd and the play jerky in my standalone (a samsung s224).
The settings I have set to in TMPG are the frame rate which is 9 times out of ten 23.976(ntsc), my dvd player has a setting for ntsc which I set it to.
In nero when I record I select the pal selection but this doesn't have any great effect as I tried using ntsc there and it was jerkier.
I have played about with loads of different things to no avail.
The latest way which is the way I said gives best results and it starts perfect and slowly gets worse, its not unwatchable but I'm a perfectionist and want it to work perfect.
I have seen the guide about converting to PAL(25fps) from NTSC(23.976) but I don't understand it, I kinda understand frameserving but what settings do I need in TMPG, do I set in vdub the frameserver but change speed to 25fps and in tmpgenc set it up with the dummy avi and set the framerate at 25fps, would this convert it perfectly.

Someone here must convert their divx's to vcd this way and get perfect output, if you do please help me as I'm getting a little peed off with jerkiness in every vcd I do.

[Conquest10]

ntsc is 29.97. 23 is film. some dvd players can't play 23.97 fps. you can't make an mpg with a framerate of 23 and author it as a PAL disc. what country do you live in?

[roy_newell]

I live in the UK, ok so its NTSC film, beg your pardon and also mate you can make a mpg with a framerate of 23.976 and then author the vcd as pal, believe me ive been doing quite a few of them. That must be what it is cuz my dvd player will play PAL and NTSC but it doesn't say NTSC film, how can I get around this???

[antoniosgubba]

Hi Roy...guess what DVD player I own?...yep, a Samsung S224!

On the whole its a great DVD player...but I do find it has trouble playing NTSCfilm VCDs or SVCDs...they have the jerking you describe.

I have found a way of producing beautifully smooth playing VCDs and SVCDs though....it is a bit long winded, but definately worth the little extra effort involved.

What you have to do is convert your NTSCfilm avi into a PAL avi before encoding with TMPGenc...this involves converting the framerate to 25fps, BUT you also have to convert the audio to match or the audio and video will not match up.

First use virtualdub to convert to 25fps....open virtualdub and load your avi. Then under audio tab select "no audio". then under video tab select "direct stream copy" then click "framerate" and change to 25fps. Then click "file" and save avi (I usually name it as "movie"25.avi)

Next (still in virtualdub)...click the audio tab and select "full processing mode" then click "conversion" and change to 44100hz. Then click "file" and save WAV.

you now have a PAL video source and a WAV which we must now shrink in length to the same time as the video (the video will be shorter in length than the original because of the faster framerate)

Get hold of Goldwave (find it in the Tools section on this site)

Run Goldwave and open your WAV...you will see the exact running time of the WAV accurate to within 1000th second...convert this time into seconds...ie, if the run time is 1 hour 10 mins 23.435 seconds this will be 4223.435 seconds. Now multiply this runtime by 0.95904 and convert back into minutes...in the above example this would become 1 hour 7 minutes 30.444 seconds.
Click the "effects" tab and select "time warp"...click "time" and enter the new time...press OK....goldwave will now shrink the audio to the exact length of the video...it takes a little while but it gets there eventually! (sometimes it looks like its not responding...just leave it and it will carry on eventually!)..when its done click "file" and save as WAV.

You will now have a 25fps video and a WAV the exact same length...use these as the sources in TMPGenc using the PAL setting...do NOT select any of the advanced options like 3:2 pulldown crap...just "full screen(keep aspect ratio)"

The result is a perfectly smooth PAL VCD or SVCD.

This all sounds a bit complex, but when you've done it a few times it is really very easy...all the preparation for encoding takes about half an hour once you're used to it...well worth it!

[roy_newell]

Hey mate, I've been following a different way but effectively doing the same thing now converting to PAL 25 fps from NTSC film 23.976 and it seems to be going well so far.
I am converting from 23.976 to 25 on the video by opening vdub and using it as a framserver and encoding it with tmpgenc, this has made the video perfectly 25 fps and looks sweet to me, right now im converting the audio which I saved out in vdub from 23.976 to 25 using besweet audio.
This seems to be going ok, when this has finished I will start up TMPGEnc and multiplex them and hopefully I should have a perfectly smooth PAL VCD, thanks for your help m8, I did try it that way first but for some reason I got crazy sizes, like 500megs after about 10 seconds so I quit that method but this one seems to be working fine for me, I'll let you know tomorrow if it works fine.
The VCD I am converting I watched myself tonight with the NTSC format and it was jerky like I described so I'll watch the new copy tomorrow and it should be ok.
Looks like its just our DVD player that does it mate, ah well never mind, as long as there is ways around it, my missus kept telling me it wasn't noticable and I was getting angry because when you know its there its really noticable, lol

[roy_newell]

Sorted, just watched it and its fine, works much better than NTSC film did.
So for this dvd player anybody who has it make sure you convert first and then, no problems

[antoniosgubba]

Cool...glad you got it sorted!

LOL...my missus said exactly the same as yours did!...when I played back NTSCfilm SVCDs I'd made I was constantly moaning about it being jerky...she, however kept saying "I can't see anything wrong with it!"... obviously our women do not have as discerning an eye as we do!

[roy_newell]

LMAO, finally an explanation for their shite driving skills, lol