How do I make sound loop infinately?

I just want sound to loop infinately. What do I have to type in the “loops” box to make it do this?
OR do I have to use script, for example, an “until False” script loop.


at the moment I am just using a very large number of loops

ummm I think the highest you can make it is like 65535 or something like that but that shold be fine I think I really am not sure if you can make it infinity…