Sony America announced three new multi-format DVD writers today. Along with the slim external DRX-S70U, Sony unveiled two new desktop models, the DRU-840A and DRX-840U. These two drives feature 20x DVD±R, 12x DVD±R DL, 12x DVD+RW and 12x DVD-RAM writing speeds.

The 840 series of drives is Sony’s latest crop of multi-format DVD burners that support 20X DVD±R recording speeds, delivering a full 4.7 GB disc of video, data, music or images on standard 16X DVD+R media in about five minutes. In addition, the drives can record on 8.5GB DVD+R Double/Dual layer and 4.7GB DVD+RW discs at 12X speed.

The internal DRU-840A drive and external DRX-840U burner come bundled with the Nero 7 Express DVD/CD mastering software. The new DRX-S70U burner has a slim design to compliment a notebook or desktop PC, supports 8X DVD±R recording speeds, and comes with a full version of the Nero 7 software suite. All three burners support both dual and double layer formats, as well as CD-R/RW recording.
The DRU-840A is available now for about $70. The DRX-840U and DRX-S70U is expected to ship next month and are priced at $110 and $130 respectively. Full details can be found here.