How do I repeat a loop for ever?

I have a loop in a movie file, how can I make it loop forever? I tried to add:

gotoAndPlay(1); on the last frame, it works, but you can hear that it’s looping, I mean it stops 1 second then loads the sound. I don’t want to set that LOOP thing either, it’s annoying. Any other ways, thanks

Is this for a movie clip?

Because if it’s a movieclip you just dont add anything to the last frame, it will loop automatically.

But if it’s for sound,
then im not sure, haven’t worked with sound


Sound: when you add the sound, I don’t remember in which panel, “image” i think…, you got a “loop” field where you can enter a number, just enter the highest one you can fit.