Techiton

Blu-Ray is the new successor to DVD and after beating the HD DVD earlier this year, Blu-Ray drives are now entering the market as more people are looking to upgrade.
A single layer Blu-Ray disc has a capacity of 25GB and a dual-layer can hold 50GB.

ASUS Blu-Ray Combo (BC-1205PT)
The ASUS BC-1205PT is BD-ROM/DVD±R/RW/CD-RW drive capable of reading data from and writing data on DVD+R/RW/DVD-R/RW/ DVD-RAM formats.
It has a 4MB buffer and is a SATA standard drive
Price: ฿ 6800 ($ 213)
Review: CDFreaks.com

LG Blu-Ray Combo (GGC-H20L)
The LG GGC-H20L is a BD-ROM/HD DVD-ROM/DVD±R/RW/CD-RW drive capable of reading data from and writing data on DVD+R/RW/DVD-R/RW/ DVD-RAM formats.
It has a 4MB buffer and is a SATA standard drive with LightScribe.
Price: ฿ 10000 ($ 313)
Review: CDFreaks.com