just got a Dell-8300-box with this (OEM) Teac +R/RW DV-W58E. Tested both 22.214.171.124 and 126.96.36.199 burning 4xspeed on TDK (Ricoh) and Platinum (Ritek R02). Although no errors are reported and the burn is ok: the whole process takes over 29 mins!
When using this "Mickey-Mouse" Sonic RNM 6.5 that's supplied with the Dell, this is takes 14-15 mins (as one would expect at 4x-speed). I'm confused ....
ps: Nero only show 4xspeed for burning, not even 2.4 ....