How to join 2 movie cds

How to join 2 movie cds (rips, mostly).
1. download nandub from here:
http://prdownloads.sourceforge.net/ndub … 1.0rc1.rar

2. Extract the contents to a folder on your hard drive
3. Run nandub.exe
4. Open cd 1 in nandub
5. Go to video>direct Stream Copy
6. Go to file>Append AVI segment and select your second avi file