Firstly, free download Cucusoft video to DVD converter pro from here, Then install it and launch Cucusoft video to DVD converter pro.
Step 1. Select radio button "To DVD"

Step 2. choose the "merge" or "batch" tab.
Step 3. Click "Open" button to open your movie file(s)
Step 4. (Optional) Set your preference. Region "4" in red frames can set the output MPEG properties.
Step 5. (Optional) Set the advanced settings according to your needs.
Step 6. Click "Convert" button to start to convert AVI to DVD, then the following dialog will pop up automatically.

After video conversion done, the "CD/DVD Burning engine" will be launched automatically. Please choose the DVD burner.

Now you want to place a DVD-/+R/RW disc into your DVD burner. If it is a rewritable disc, the program will erase the disc before burning DVD disc. Done!
Why Choose this One to Convert AVI to DVD?
* Any video to to VCD/DVD/SVCD is even faster than real-time.
* Support burning VCD/DVD/SVCD.
* Embedded "DVD author Express" is inside.
* Convert avi to VCD/DVD/SVCD compatible mpeg file.
* Support .VOB, .asf, .wmv, .rm, .rmvb, .mov format as input file.
* Support DivX, XviD avi format.
* Support MPEG1, MPEG2, and MPEG4 video format.
* Support MPEG layer1, layer2, layer3 audio format.