It depends on what format they sent you the codes in. Hopefully they are HEX codes which will appear as a long string (sets of 4 characters, usually numbers).

You will first need to setup a device using NeoEdit that will be used for your DVD recorder. Make sure it has all the buttons you will need but don't worry about any codes or anything. It doesn't matter which manufacturer you identify b/c the codes will be overwritten anyway. Save your NCF. Then you'll need to download a program called NeoHacker from the files area and install it.

Open your NCF with NeoHacker....click on the "+" next to the device your button is on. When the "branches" expand, find the button you want to add the code to. It may be in a sub-branch under "pages" unless it is a hard button. You are looking for the ITEM with the name you gave that button. If the button is for your Receiver and is labelled "Input - VCR", you need to look under the Receiver device for "Item: Input - VCR". Click on the "+" next to the item. You'll see a folder called "Actions" at the bottom. Click on the "+" to expand it. You will see a folder called either "Normal IR" or "Learned IR" depending on the code you previously assigned to the button. The words Normal IR or Learned IR should appear in BLUE TEXT. Click on this folder. The text box at the bottom of the window should now be labelled "You can enter an IR code....etc". Simply cut and paste the discrete code that you desire to use into this box. Beneath the box are the words "Save Parameter". This is actually a large button that you MUST click on to save your code.

Repeat this process for every button you wish to add codes to.