Thanks. The script works a lot faster than my method.

Preset number 80 in the free version of RegExp.

Yes .. regexp has a script for this. there was an post earlier like this so look there

I would like to change all one digit track numbers to two digit track numbers.
For example, I want to filter all track # 1s in my collection and mass change them to "01".
I can do it through the manage collections - add new collection menu and setting the criteria to "Track # = '1'".
However, I would have to set this up nine times for all nine digits, or go in and change the criteria each time to change the track number.
Is there an easier way to do this?
Perhaps using the RegExp script?