I am a Dimension 2350 user & my installed cd drive is a hl-dt-st cd-rw gce-8400b.  I was using Roxie 5 and after getting half way through the burning procession it would just hang up.  Thought it was a problem with Roxie 5, so I upgraded to Roxie 7 & still have the same problem.  I'm using the same cd's & the same processes that has worked in the past.  When it hangs up, it records the songs up to that point, but won't finish.