On PS3, some savegames are locked, meaning that you cannot backup them and move them to another console. They can only be transfered on a new PS3 system through the online PS+ program facility ($$) or by transferring data from the old system to the new one through provided system tool on the console.
 (Problem with latter case is that you have to have both consoles up and running at that time, which is not the case if you buy a new one cause the first one crashed, or if you sell the old one to be able to buy the new one).

I then wanted to know if there is a somewhat official and up-to-date (maintained) list of games fitting this category so that I can know if I'm concerned or not and if my external HDD backup is enough or not in case my console crashes.

I've seen some lists here and there on the web but don't know how accurate they are.

On PS3, some savegames are locked, meaning that you cannot backup them and move them to another console. They can only be transfered on a new PS3 system through the online PS+ program facility ($$) or by transferring data from the old system to the new one through provided system tool on the console. 

(Problem with latter case is that you have to have both consoles up and running at that time, which is not the case if you buy a new one cause the first one crashed, or if you sell the old one to be able to buy the new one).

I then wanted to know if there is a somewhat official and up-to-date (maintained) list of games fitting this category so that I can know if I'm concerned or not and if my external HDD backup is enough or not in case my console crashes.

I've seen some lists here and there on the web but don't know how accurate they are.