hi, i have a Dynex DVD+R/RW writer 8x write speed and 40x CD-r speed

it has been reading properly and burning properly untill i tried to create a dvd movie and after that the dvd stopped working properly.

this has happened to me before, and i did get help here, and i fixed it but now the SAME problem came back.

the problem is, when im watching a dvd movie, the movie play is extremely choppy and it just wont read properly. and when i try to burn data or a movie, it cannot buffer correctly and it takes amazingly long to burn somthing. can someone please help me. thanks a lot.

btw, i have nero 6.