Originally Posted by steliosaa
Yes there is. Make sure that you backup hdd_001\home folder as it may delete the act.dat file found in the directories. I am backing it up right now. Mine is 1.14 GB in size.
I always make two backups of my HDD, one via the backup utility (to backup profiles, etc.), another via FTP and another via file manager and checksum compare both so thankfully that's not an issue.
I know it's overkill but it's better to be safe IMO, plus it saved me bricking my PS3 when installing firmware due to a power cut because it took so long LOL.