I have the same Problem and i've only had mine for only a month it stops at the loading library. I try to format it, but it will not pass on to the other stage that allows me to format. I tried to use the rollback utility but the samsung website kept giving me this error that my device was not connected, but it was i checked several times. Please help.
When I downloaded the firmware My yh-925 stopped working. It had been working the 6 months since I bought it. It wont start anymore. It just stops at the loading library... start up. What can I do and who should I email? Thanks.

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic