Mame Screen size? Newbie Question

[Oscarb]

I am new to mame and I have a couple of basic questions, I think.

1. When playing old time classics like DigDug or Donkey kong, how do you get the screen size to keeps its original format oof being taller vertical rather than the 4:3 screen size?
2. If I were to build a cabinet for games do I put the monitor in, in a 4:3 format or a 3:4 format and is the software able to rotate the games 90 degrees if I put it in 3:4?

[-=VampyR=-]

I am new to mame and I have a couple of basic questions, I think.

1. When playing old time classics like DigDug or Donkey kong, how do you get the screen size to keeps its original format oof being taller vertical rather than the 4:3 screen size?
2. If I were to build a cabinet for games do I put the monitor in, in a 4:3 format or a 3:4 format and is the software able to rotate the games 90 degrees if I put it in 3:4?

Mame can rotate games and if you have a rotating LCD monitor the better...
You can also change screen size anyway you want...
Use mame32 plus!...it has an easy to use front-end...