I have received last week that barely unwrapped graveur.A I have it plugged into a USB port on the sector, and I have immediately proceeded to etching a film project that I was waiting on my editing software Movie Studio 13. This project was in HD. after 50 min, the blu ray was engraved !!! no problem. So, I have engraved another film in the same way! On w8, everything works perfect! ! l you will understand, I recommend absolutely this product! And besides, that is what he is beautiful !!!