Thanks "burninfool" (expert Guru) for your help....yes, I was using 8X Maxell -r disc
Well, I am so happy... I just completed my first dvd-r disc and I can play it on both my dvd burner as well as my 4 yrs old Panasonic player (which can only do -r disc) and the image and sound quality just blown me away, not bad for a newbie aeh!
I guess I still have a lot to learn to fine tune the creating/burning process (because when I insert the disc in my Panasonic player, it does not start automatically, it would show an island image with Chapter "1" on the top left corner and I have to press "1" for the disc to play).
Oh, I am using NeroVision Express 3 that came with my Sony burner and it's so simple to use, just select the file avi/mpeg file you want and Nero will automatically "Transcode" it and burn it to either to the burner or your hard drive. In my case my 1st avi file was 800MB (4.3 G on the dvd-r disc) and it took Nero 1 hr and 20 mins to "Transcade" and 8 mins to burn.
I am beginning to like NeroVision Express 3 a lot, you can do all sort of things with it, edit/cut/create/merge/preview plus all sort of advance add ins and sounds options......and best of all it so seemlessly integrated with Nero Burning Rom and I guess it pays to get the Nero Full version and I got it for free with my burner.