I think you'll get more responses to this question in the Blu ray equipment forum, so I'm moving your thread in there.
You've probably already seen my answer in the soundcard thread, but I use an LG GGW-H20L, which has been very reliable. It can play both blu ray and the obsolete HD-DVD format, and can burn to blu ray, dvd and cds well. I really haven't had any issues with it. We even got a new firmware from LG last year for this drive.
If there is a bone to pick with LG, it is their slow or sometimes non existent firmware updates. And LG has a rep for preferring good media. But I only use top quality blank discs, so that has not been an issue for me.