when to use 2:3 pulldown???

[BCAESE]

I usually convert from PAL to NTSC 526x480 to 352x480

I use TMPGenc, when encoding must I use 2:3 pulldown??

I usually encode to 23.97 video and audio.

When I do use it will it cause audio sync problems with some files?

I use DVDLab and I notice everytime you put a file in it says 3:2 pulldown to the file.

If I did not use the 2:3 pulldown when encoding with TMPGEnc what problems will I encounter??

[SLK001]

I usually convert from PAL to NTSC 526x480 to 352x480

I use TMPGenc, when encoding must I use 2:3 pulldown??

No, but you'll have to apply the pulldown flags somewhere along the line (if you encode to 23.976 fps). I prefer to add the pulldown flag after I have finished encoding using PULLDOWN.EXE.

When I do use it will it cause audio sync problems with some files?

No... (well, it shouldn't).

I use DVDLab and I notice everytime you put a file in it says 3:2 pulldown to the file.

If I did not use the 2:3 pulldown when encoding with TMPGEnc what problems will I encounter??

As I said earlier, a pulldown flag will have to be added sometime. If DVDLab does it on its own, then just feed it 23.976 fps video.

[BCAESE]

I guess if it is added when encoding or when in DVDlab it doesn't matter.
Correct me if I'm wrong.

[guns1inger]

I use DGPulldown (same idea as Pulldown.exe, but more flexible) mainly because it is faster than DVD Lab's pulldown process.