1. Open up "My computer".
2. Right click your DVD drive.
3. Drag down to "Properties" and click "Properties".
4. In the Properties menu click the "AutoPlay" tab.
5. Click the dropdown menu and select the filetype that you want to change the action of. This time please choose "DVD movie" .
6. Under actions select either "Select an action to perform" or "Prompt me each time to choose an action".
7. If you chose "Select an action to perform" select what action you want to perform. This time please choose "Take no action".
8. Click Apply or OK.
9. If you chose "Prompt me each time to choose an action" the next time you insert a CD or DVD with that type it will ask you what you want to do.
Then each time you insert a DVD to your DVD drive, the DVD should not be automatically played by your DVD player software.