You rock!!
Yes, every url is absolutely unique (otherwise the physical animal tags won't work). I'll download the free version and play. Then I'll get the pro version. I feel a very positive JED review coming.
Cheers.

Luigi,
I purchased the component (thank you) and it appears to be very powerful. However, I'm having a devil of a time figuring out how to configure it for my needs.

As I explained above, I will have thousands of unique ID codes associated with a QR-Codes on metal animal tags. Each permutation will be 4 characters long and consist of A-Z and 1-9 (1.2 million unique combinations). For example, a particular QR-Code horse tag should send mydomain.com/ABCD to mydomain.com/horses/entry/view/5-woody, where "5" is the id of the RSDirectory entry (a Joomla directory component) and "woody" is the name of the entry.

My problem is that there is no logical link between "ABCD" and "5-woody". However, one of the fields inside of this entry includes the ID "ABCD". Would it be possible to extract that id code from the database to determine the destination url? Does using the database to generate the redirection slow down the site significantly?

Thanks for your help.
Danny

Another update.
I figured out how to make it so that the entry has ABCD at the end of the alias. So now I just need to get mydomain.com/ABCD-woody to go to mydomain.com/horses/entry/view/5-woody-abcd. I'm not sure if this makes my life any easier because I'll still need the database to know the id of the entry and title of the entry.

Hello again,
I'm finally ready to start building my master rule.
I've verified that all of my alias's (or tag IDs) are unique. Recall that users will scan a QR-code that should direct them to their pets profile. We currently have 390,000 unique id tags that will become pet profiles (we'll add more when we run out).

For example:
Source www.equitag.com/aaaa (this is what is on the QR-Code)
Destination: www.equitag.com/horses/29-aaaa

It would be great to have it as an internal URL so that the user always sees www.equitag.com/aaaa

I sense that I need to use placeholders to grab the article ID and alias (e.g., 29-aaaa) from the source url, but I'm not sure how to set this up. Perhaps I'm making this more complicated than it needs to be. I would like to make one rule that can translate the alias in the source url to the destination URL.

Can you help me write this rule?