Hello people of this forum! My Western Digital Caviar Green 1TB disk is failing on me and I'm planning on sending it for RMA since I have standard-warranty till february 2012 but I want to make sure my 'personal effects' on the disk are completely wiped out and irrecoverable. To be honest with you guys 'I have videos/pictures of me and my girlfriend having sexy-time' and I don't want other people to be able to view and worse distribute! Can somebody give me some pointers to tools I should use and ensure me that it's 100% irrecoverable? By the way is the free-space wiping in CCleaner competent? Thanks a lot!