Best data recovery software mac 2012 so, you could get the list of all bad blocks, and then you could know their location, which what is the difference between striped and spanned volumes? can help to estimate if the bad blocks damaged regular files or something else. I was using debugfs. My disk, for instance, has lifetime 500k. If you can't get into the recovery partition, a Linux LiveCD/LiveDVD may be your best option. I believe Linux can mount HFS+ drives for read-only (and perhaps write, I have not tried in a while).