Do not go by four paths, this player has a big flaw: it is noisy! Not a big noise lawnmower certainly, but the sharp hiss produced by the camera when the DVD / Blu-Ray playback is really painful over time. I come to every reader to push the furniture bottom to mitigate somehow the damn whistle, it's a bit shameful.
By cons, and this is a very good surprise: Once a hard drive connected to the USB port (even self-powered drives work), this unit plays all without flinching. Even .mkv in 1080 dts pass like a letter in the mail. Just make sure to format the disc Ntfs to be clearly recognized.
In the end, the surprise of the media player makes up for the disappointment of the blu-ray to see if you're looking for a more versatile (pretty good for the price) or drive reserved for the blu-ray (there can do better) .