> I wanted to use some Robotron sounds for my mame cab for boot up, start game etc and > have been scouring the net for some samples.
mame robotron -wavwrite robotron.wav
this will give you a clean wav file of all audio while you played a game. You can later bring that into audacity and cut out what you need. I did this for SmashTV so I could get the "Bingo!" sound when you insert a quarter. I love it as a text notification.