If it's a P4 rig, then that's absolutely true. No way to play back blu-ray on a single-core P4 rig. A Pentium-D dual-core might be able to handle it.I'm not sure that there's enough horse power in that thing to play back blu ray smoothly.
You might have a chance if you can upgrade your graphics card to something more modern, that could play Blu-Ray.
This pc only has onboard graphics. Even if I installed an AGP card, would the cpu have the guts to play back blu ray, assuming it has the fastest P4 processor installed? I will have to see what processor it actually has. BTW, I also plan to install 2GB of ram.