Problem understanding part of TMPGEnc and also Vobsub guide

[yuri21]

I'm trying to convert a divx into vcd for a friend.

Firstly, when I used VobSub to view the File Information, the framerate of the file is 29.971 fps. Is it okay if I were to use NTSC for this or must the fps be 29.97 exactly when I start the Wizard for TMPGEnc?

Secondly, my friend of all things decided to encode using Xvid which is mpeg-3 I believe. So, can I still select NTSC or some other option(pls tell me 'cos I don't know) or am I screwed? I must point out that when I select NTSC and start to edit the frames, I can see the movie perfectly.

Lastly, in the TMPGEnc guide(source range section), it says:"Select first the first half and add some more seconds so you will get some overlapping between the CDs."

Just what exactly does the author mean by "add in more seconds"? How do you do that?? Or does he mean... after you have selected the end frame you want which is say... 1000, you add in a few more frames to get ,say, 1008 BUT when you set the start frame for the second part, you specify frame no. 1000? Or does the number of frames that overlap have to be higher as I think 5 secs = about 149.855 frames, rite?

I completely do not understand this entire sentence at all. :/

A reply is appreciated.
Thank you!

[sterno]

Firstly, when I used VobSub to view the File Information, the framerate of the file is 29.971 fps. Is it okay if I were to use NTSC for this or must the fps be 29.97 exactly when I start the Wizard for TMPGEnc?

That should be fine.

Secondly, my friend of all things decided to encode using Xvid which is mpeg-3 I believe. So, can I still select NTSC or some other option(pls tell me 'cos I don't know) or am I screwed?

If it's NTSC (which 29.97fps would be), then yes, you use NTSC.

Just what exactly does the author mean by "add in more seconds"? How do you do that?? Or does he mean... after you have selected the end frame you want which is say... 1000, you add in a few more frames to get ,say, 1008 BUT when you set the start frame for the second part, you specify frame no. 1000? Or does the number of frames that overlap have to be higher as I think 5 secs = about 149.855 frames, rite?

It just means have some overlap between end of the first and start of the second. It's not really necessary, but it's a good idea. For instance, my DVD player tends to cut off somewhere between 1 and 2 seconds at the end of the (S)VCD track, so I always put around 2 seconds of overlap (which would mean end CD1 at 1060 and start CD2 at 1000). How much you want to use is up to you.

[yuri21]

Oh my goodness, thank you!

I spent almost an hour tearing my hair out over figuring out what to do.

But one last question which I forgot to ask:
What does setting the aspect ratio in Part 2 of 5(Project Wizard: TMPGEnc) do? If I were to select ,say, 4:3 625 line(PAL, 740 x 576), would the movie be blurred or distorted?

[weeyoo]

In part 2 of 5 you are telling tmpgenc what the aspect ratio is our your
source material, then when you set the birate etc. you will tell it what you
want your output aspect ratio to be. If you want it the same, or it you
want to change it to full screen and cut the edges to fill, for example.

Hope that helps.

[yuri21]

Thanks for the explanation!

So, leaving it at 1:1 VGA is okay, rite?

[sterno]

A divx file probably is 1:1 VGA, yes.

[yuri21]

Mmm... thanks.

I noticed something odd regarding the video aspect size of the resulting .mpg file. The size is smaller than that of the divx I encoded it from! What option should I select to ensure the video aspect size of the resulting .mpg file is of the same size as that ,or larger than that, of the divx? (When I encoded, I chose full screen: preserve aspect ratio)

Thx

[sterno]

Do you mean that the edges of the picture are cut off when you view it on your TV? That's probably from overscan, you can do a search of the forums and find several topics about whether or not you really need to correct it and how to do it if you do.