This guide helps you to convert and burn AVI/MPEG/DivX/Mov/RMVB and any videos to DVD. It includes two parts:
Part 1: How to convert and burn any videos to DVD on windows?
Part 2: How to convert all sorts of movies to DVD on Mac OS X?

Part 1: How to convert and burn any videos to DVD on windows?
Tools required: Cucusoft video to DVD converter
Download it from here
More information of it here
Install and launch Cucusoft video to DVD converter pro, you will see the UI below.

1. Select radio button "To DVD"
2.choose the "merge" or "batch" tab.
3.Click "Open" button to open your movie file(s)
4. (optional) Set your preference. Region "4" in red frames can set the output MPEG properties.
5. (Optional) Set the advanced settings as following.

6. Click "Convert" button to start the conversion task
7. After you click "Convert" button, the following dialog will pop up automatically.

8. After video conversion done, the "CD/DVD Burning engine" will be launched automatically. Please choose the DVD burner.
9. Please 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.
10. When burning DVD is done, the DVD disc will be eject automatically. You can also find the output file at the output folder.


Part 2: How to convert all sorts of movies to DVD on Mac OS X?
iSkysoft DVD Creator for Mac is an excellent video to dvd burner for mac that can burn all popular video formats (AVI, MP4, M4V, MPA, MPG, MPEG, MOV,3GP, 3GP2, FLV,VOB, DAT, TS, TP, TRP, M2TS, etc) to DVD disk which can be played on portable and home DVD players.
Step 1: Download and Run DVD Creator for Mac
Click here to download this DVD Creator for Mac (there is only intel version), run this program, you'll see its interface:

Step 2: Add Video files.
Click the Add button to add video files to the program.

Step 3: Edit Video Files
You can trim and crop the video files and adjust the effects before burning the videos to DVD on Mac OS X.

Step 4: Edit DVD Menu
This video to dvd creator for mac allows you to create your own DVD menu with various built-in resources. Click the Menu button on the bottom right of the main interface to edit the DVD's menu.
The added files are the titles displayed on the menu. The first frames of each video will be set as the thumbnails of the titles as default.

Step 5: Previewing the Project
After finishing all the editing, you can click the Preview button on the main interface to preview your DVD project.
Step 6: Burning Video Files
Before burning your DVD, you can select your DVD type and the output quality at the bottom of the main interface. When you choose different formats or qualities the recoding time of the DVD is different. The table below shows the recoding time in different situations.

After you choose the correct DVD disk and the suitable video quality, you can click the Burn button to set burning settings and burn your DVD project.
ConvertXtoDVD seems a whole lot easier.... select the video file to convert and it will do it immediately, then burns straight to disk after, you can leave it to do all the work. Nice guide though.