Purchased an LG GP60NS50 DVD read/ write external device. LG did read DVDs but did not write with the SP3 . I read over some forums. Found that using split USB cable (Y type cable with one input, two output) with one end connected LG DVD reader Writer, and one USB to SP3 itself (not docking station) and the other USB connected to a powered USB hub, writing can take place. Hope this helps.