Sony has just released three new CD/DVD burners. The DRX-S70U and DRU-840A are both internal drives, while the DRX-840U is internal.
The DRU-840A and DRX-840U come with Nero 7 Express for disc authoring and mastering and offer:
12X DVD+/-R DL
The DRX-S70U is a slim external drive aimed at laptop users and those looking for a lightweight portable drive. It offers the following write speeds:
4X DVD+/-R DL
The DRX-840U retails for about $110 and the DRX-S70U for about $130. The internal DRU-840A retails for about $70
Source: Sony Press Release