I own a Sony dvd burner and it's been nothing but headaches. I believe the model# is DRU-510A. It's very noisy, makes coasters in groups (meaning 4 or 5 cdr's in a row), a bit wacky when it comes to reading discs, especially for eac (causes eac to lock up quite often). Once it started making multiple coasters, i quickly ordered a Plextor dual dvd burner and it's been great so far, paid around $160 on newegg.