I plan on purchasing a remote that has the ability to download codes from a computer database of codes. A few questions...

1. How does a person get access to the database of codes? Must you purchase a remote from URC then they give you access to the codes?

2. What if you buy a used remote. How would you get access to these codes?

3. Can you download codes from other databases other than the manufacturer of the remote you are using?

4. I plan on only using the remote I purchase to download discrete codes to the remote I purchase then learn those codes into the URC RF 20 remotes I own. Based on this information any suggestions on the least expensive remote I can purchase to accomplish this.