when you save images can you have ....

[lilyputts]

Hello!
when you save images to upload to your site at a later time, does it matter if there are spaces?

example...gorgie porgie.jpg

should they have dashes??

Thanks for your info! :D

[jitendraag]

It's fine to have spaces.. but spaces get converted to %20 and some people may not like that. besides it hard to manage files with whitespace(s) in their names.