BD Ripper (3D Plus) Unexpected shutdown

[gabroo7]

I'm using Window 7 operating system and have Blu-Blu and Blu to Mobile 7.0.70 version installed on my desktop. I having issues with every single bluray I try to convert. The software run on my dual quard core pc for 3-4 hours and do not do anything. It just gets stuck at 15-30% progress and then shutdown my pc. It is not normal shutndown. Once I restart my pc I get an error message from window for unexpected shutdown. If Im not running the DVDFab then nothing happens for months. I can leavse my pc on for ever. But everytime I try to run DVDFab to convert Blu-Mobile I see the problem. What is your recomendation or solution for it. I paid a lot of money for the software hoping it will work better than other softwares. So please advice as soon as possible.
Thanks

[AGJ]

What is this windows error message you get? Sounds like to me your computer is overheating and shuts down to protect the CPU. Have you tried ripping the Blu-ray to computer using Blu-ray to Blu-ray main movie and then use the Blu-ray to mobile to convert as that does not create as much heat on computer