Won't export long sequence into .mp4; can't find .mpg file

[Videoboy56]

I have two questions: when I create a DVD, I know it makes an .mpg2 file. But I can't find it anywhere on my computer. Does it delete it as a temp file once the disc is burned? I wanted to save the last one I made.
Also, I was trying to export my 2 hour 24 minute sequence to an .mp4 file. It gets only so far and then gives me an error message that the export has failed with no explanation. I had to break up the export into two files. Does anyone know why I can't export a long sequence to an .mp4? Thank you.

[antonsvideo]

in detailed settings you will see the path and you can set the path, I always set the path to the project folder
https://www.videoproductions.com.au/...d-settings.png

[Videoboy56]

Thank you! That box wasn't checked off in my Neo, so I didn't even know where the path was. I found the file, moved it, and changed the folder to a more convenient location.