If anyone can help me find those files to USB back into the TV, I'd appreciate it a lot.
I have just found this thread and I have the same issue after I upgraded the FW via Samsung's website. I have a LN52A850.
So far, I have found no solution to restoring the contents or at the very least, finding the files to load onto a thumb drive so I can add it back to the TV's internal memory.
When the TV first came out, people thought that the Content Library was just a bad, useless gimmick to lure people in to paying $2999 for a flat-screen LCD TV. However, I did not think that was the case with the extensive list of interactive features built-in to the TV. I am saddened to see that it is now gone.
Hopefully, someone can find the downloadable files left on their computer or on some sort of archive.
Thank you, Sydnie Fulton.