Will not recognise media

[qanda]This thread is about the Lite-On 16x 8x 8x / 16x 6x 4x / 16x + 48x 24x 48x DVD-Dual + media. Click here to see full specs[/qanda]I am trying to backup some xbox 360 games and everytime i put a disk in the .
LITE-ON DVDRW LH-20A1P IT DOES NOT RECOGNISE THE DISKS .They are the top quality verbatim mkm001 disks from singapore aswell.dvd +r dl disks.and i have a lg burner and it will only burn at 2.4x using image burn and clone dvd/cd.
{hl-dt-st dvdram gsa 4267b .is there a modded firmware anywhere please it just takes to long to burn backups at that speed 40 mins …

ANY HELP IS MUCH APPRECIATED .Regards Sentinel…:sad: