Well, the read disc of my PS3 was broken while I was playing Uncharted , I was trying to win the Crushing trophie on Crushing difficulty.

I copied the savedata to a MS of a PSP. In this moment, the PS3 is in the Sony Service. When they will give me a new PS3, can I put the savedata again on the PS3 and continue playing from where I leave the game and get this trophy?

Sorry for bad english lol

As long as you backed up your utility everything should be like it never broke.

I guess if your PS3 is exactly the same, there shouldn't be any problems. Otherwise it will seem like you're using a savegame from someone else, which might mean it disables trophies.

You should not have any problems.  I had a friend copy his gamesave of uncharted and bring it over so I could help him with some difficult parts on crushing.  He ended up getting the trophies just fine, and re-copied his gamesave and put it back on his PS3.  Just make sure you don't lose your MS :D (If you do, just download a 100% file, and select to start a new game on crushing w/o rewards... no point in having to go through hard again to unlock crushing if you don't have to)

Trophies are set to your account..I removed everything from my Ps3 but when i went online all my Trophies came back.

Thanks for the info :)