HCenc Help creating AVS script. newbie!

[Rom7x]

Hi, I have some DVDs I'd like to author with some files (don't ask me what).
I downloaded a lot of programs and I found on this forum a guide (https://forum.videohelp.com/threads/277171-HCbatchGUI-user-guide-~-Batch-process-video-and-audio and https://forum.videohelp.com/threads/273620-How-to-encode-an-Avi-to-dvd-ready-video-and...-Aften#1734488) but I'm really having some problems. The problem I found is that with both of my programs I have to load an avi or mpeg2 source. But I have some h264/h265 source. How can I load them? I read online about using some avisynth plugins to do that but I have never used avisynth before so I don't know everything about this world. Is there a guide/someone able to help me? I also thought about converting to xvid/divx (avi) with a really high bitrate (like 30Mbit or more) so I don't lose much details, but this option seem very slow. Is there someone who can help me? Thanks!

[davexnet]

Try AvstoDvd, it's supported here in the forum and is recommended often.
Gives you a choice of HCenc of FFmpeg for the encoding

[Rom7x]

Try AvstoDvd, it's supported here in the forum and is recommended often.
Gives you a choice of HCenc of FFmpeg for the encoding

Ok, and using this program I can input a h264 or h265 file and create an AVS script compatible with HCenc? Thanks!