VDub w/Avisynth produces empty files exporting MP4s

[takearushfan]

Yep,
It didn't used to do so, but when I use Avisynth to import and export an MP4 to/from VDub, I get a 0 byte empty file. I'm using scripts that utilize FFMPeg if that matters, though it's probably not enough information. In all fairness, if I knew what info to provide as help, I wouldn't have an issue

[manono]

Why are you using VDub? Why not use a program that accepts AviSynth scripts and encodes for MP4? I use RipBot but there are many others.

Or did I completely misunderstand you?

[LigH.de]

VirtualDub can be used, it supports export to external encoders and multiplexers since v1.10. But to know what's wrong, we would need to know your whole encoding set (you can "Export" it to an XML like file, IIRC) and the log of your failed export task.

There are indeed tools which may be more useful for this job, like MeGUI (for experienced users who need much freedom) or StaxRip (for less interaction) or Hybrid (by Selur, multi-platform GUI).

[takearushfan]

I, can, not, believe I didn't know it can do that ... *massive facepalm*
Yet again, Sir, great thanks

[takearushfan]

LigH.de, my apologies, as I forgot to reply to your response. For now it seems that all I was looking for was solved by manono's answer. Thank you though