Is there a software where i can rip a blu-ray onto a desktop?
Of course, there is and now there are many software like this.I would like to suggest you this one which is now the one of the best one. http://www.leawo.com/blu-ray-ripper/
Gizmodo wrote up a tutorial in 2009, it may be out of date now though. http://gizmodo.com/#!5161848/how-to-rip-blu+ray-discs