Plextor
Plextor america: the leader in reliable cd, dvd and digital video solutions
http://www.plextor.com/
Teac
Teac
http://www.teac.com/dspd
Toshiba
Toshiba’s hdd & storage device technology continue to push mobile pc's, automotive applications and consumer electronic devices to new performance heights.
http://www.toshiba.com/taecdpd/