What's the problem with parenthesis containing filenames?

[AmigaMance]

It seems that AmigaDos is unable to handle filenames that contains parenthesis. It can not copy, rename, delete them and so on.
 For example, copy dh7:my_file(new).txt ram: fails until i use the WorkBench, open the window of dh7: and rename the file by removing the (). Then AmigaDos can handle the file properly. Why is this happening?

[AmigaMance]

I guess you are not familiar with amigados wildcard syntax?

 Wrong guess.. I just want to know why this happens.

[AmigaMance]

@karlos
 Oh, i see now. Thanks, i wasn't that familiar with wildcards.

[AmigaMance]

@Ilwrath

 I just tried to use quotes but it doesn't work. so, yeah, it's better not to use reserved characters. In fact i never use them. I got the filenames from the internet.

[AmigaMance]

As karlos said, though, you can still manipulate the files using the apostrophe, IE:

rename file_'(with_brackets').txt file_without_brackets.txt

 Oh, right. This works. :-)