...I insert both DVD-RW or DVD-R it says in Toast that it burn at 2x maximum, is it the media I'm using or the information I have about this drive is wrong?
Thanks for any advice
The information you have about the drive is correct. First of all, what does the media say for write speeds? If it is 8x or 16x DVD-R, it should be writable at 8x.
How to really find what is going on is to insert a blank disc and let finder show it as essentially a burn folder (but with the DVD icon). Drag any file onto that disc icon, then double click the icon to open the burn folder. Select "Burn Disc..." from the Finder's File menu and you will get a pop-up there which will have a speed setting set for the highest burn speed supported by the drive and the media (should be 8x or the media speed if it is lower for a DVD-R or DVD+R). You can then cancel that dialog and eject the disc.
If Toast still only wants to burn a higher speed disc at 2x, then that is a Toast issue, or at least is certainly looks like a Toast issue.