It's 2.4Ghz CPU with 4Gb of RAM. Not sure about graphics, but I think it's an inbuilt Intel chipset
That processor won't do blu-ray, according to the different software packages I've looked at, unless it's a dual core.
What is the make/model of the laptop?
Mike
It's possible that a "purpose built" blu-ray external will play through USB due to the controller in the drive itself. There's a few out there saying they do blu-ray and only have a USB interface so I can see no issues with that or the companies would have been shafted by now for claiming the drive was suitable for blu-ray when it wasn't.