[quote name='nicolicreer']Hey guys I have a question:
I want to buy a new hard drive for my PS3, if I use the Backup and Restore utility on the PS3, will it also back up my shared games and accounts or will I lose those shared games? Can I also redownload my purchased games even if I already shared it with 5 people (including me)?[/QUOTE]
I'll help you on this one since I recently upgraded mine's.
All demos, videos, music, game saves, and account profiles will not be lost. However, you will need to re-download any DLC you purchased online. For example, I had to re-download my SingStar & Rock Band songs, PixelJunk Monsters, and Castlevania SotN and lost nothing except time.
All in all, make sure you have access to all accounts with the DLC you purchased or else you won't be able to re-download them.