There have been some definite improvements made in the PX-W4824TU. Most notably, the access time was lower compared to its little brother. As far as testing was concerned, the burn time with Nero (for each drive) had a standard deviation of about <10± seconds. Further improvements have also been made on the load/eject time, which means there is no justification for a lack of burning CDs on the account of time, inconvenienced, or the lazy couch potato (and computer too).