[qanda]This thread is about the Sony DRU-840A. Click here to see full specs[/qanda]Trying to add a second burner to my computer , primary IDE connected to OS HD 160GB (Master) and Seagate 300GB storage only (slave), the secondary IDE connected to (Old) SONY 830A (Master) and ( New) SONY 840A ( slave) .Everthing works fine until I try to burn different disc’s from diff HD’s at the same time, it slows to a crawl unless I abort one disc and then it will finish the other fine. What do I need to do to make this work (if possible ) ???