Reg Ex to fix iTunes tracks and discs not working

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1

Whenever I use the following to try to fix track numbers and disc numbers it doesn't work.

Regular Expression: ^( \d+)/\d+

Replace with: $1

Please Help?

2

It's $1 and not %1

3

Sorry! That was a typo. I am actually using $1 and not %1.

I can't figure out why this isn't working.

4

This RegExp works for me: ^(\d+)/\d+
but this not: ^( \d+)/\d+
Do you see why?

DD.20060903.1617

5

I copied and pasted the previous. Stupid space.... Thanks.