There are three dashes in your example, not two. And a previous poster's comments about escaping the dash apply. So I'm unsure just what you're trying to do. Still, you're wanting to change the greedy behavior of [...]{1,75}. Check out What does it mean that regexes are greedy? in perlfaq6

throop

update: you've added more examples, so let me give you some more comments –

Are you ever going to have line breaks in your titles?
Are all your titles going to start with GRP?
I suggest:

m| \s* GRP \- \d+ (?: \s? \-\d+)   # The GRP intro
   \s+ \- \s+                      # The dash
   [\w\s\d()\-,]{1,75}            # I have doubts about this
   <\/title> |xms
[download]

If this looks unfamiliar, check out How can I hope to use regular expressions.. I have some doubts that you really want the spec [\w\s\d()\-,]{1,75}. That is, are you really confident that you're not going to see a line like

<title> GRP-124-9 - Alkaline Rust Remover Solution (Yugo HTP-1150L - R
+ust &amp; Stain Remover)</title>
[download]

and lose on the '&'?