I have Ritek 8X DVD-R media, when I use DVD shrink I put the disc that I want to copy. It analyzes it and I reauthor to what I need. Now when I click on backup a window opens up asking me about source and destination etc... one of the tabs has burn speed, it always defaults to Maximum, my other options show 1X,2X & 2.4X with that disc in. With my blank media it shows me 2X, 4X & 8X. Once it is done encoding it jumps right into burning and doesn't give me a chance to select 4X. What do I do?