guachi, I didn't test long videos with all the resolutions I programmed, but I already generate a video during a full night without problems.
By "crash", do you mean the program simply quits without any warning, or the video processing doesn't complete? In the second case, do you have a message or a stack trace in Java console to report?
Did other users have similar problems?

It will be difficult to improve rendering performances in a close future, since rendering engine at quality level 3 and 4 is SunFlow and I'm not the developer of this library. If you can, delete rooms and furniture you won't visit in the video path.

By the way, if you think I missed some formats it's not too late to change the list.