Hi, after noticing a that time machine has been really slow to back up lately (before 10.5.6 by the way), I started DiskWarrior and took a Disk Integrity check. After 15+ hours its not even halfway through on a 500gb disk, but its so far found 223 000 bad blocks (out of 282 000 000). How BAD is this - should I stop trusting it for backing up important stuff (I have the most important stuff on two externals allready)? Is there anything that can be done with bad blocks? Thanks!