How do i make my laptop burn dvds faster?

Ive used dvd shrink/dvd fab, it used to save it to my hard drive in about 15 mins and now for some unknown reason its taking about an hour. and i also used to burn dvds that had already been decrypted using nero or sonic burn and thats also taken forever and soon as it gets to about 95% finished it says theres some error. can anyone help im desperate?