I recently purchased a Plextor Premium 52x32x52x BPS CD-R/RW burner from newegg.com I had the selection of choosing between BPS and SW of the same burner. I wasn't sure what those meant, did a little searching, not much, and didn't turn up anything. I ended up buying the BPS because the OEM was $78.00 and the retail version of the SW was $82.00. I figured that if the BPS was in retail packaging it would cost more and hence must be better. I know that is a shot in the dark but seemed semi-logical. Could someone explain to me the difference between the two?