HP Compaq Presario V2000 Notebook "recognize avi files" Questions

...was a bit tricky. Now, I realize that my DVD writer wont burn DVDs. It plays DVDs, CDs, and even recognizes blank DVDs and CDs, it just wont burn them. I use Xilisoft AVI to DVD converter and

...recognize the file extension and open it. For Example :A notepad file will be open by Notepad editor untill and unless you cange it to open with other program. Microsoft Word can open a notepad file ...