Maybe though I should run a surface scan with V5.1 which I've just downloaded. Or maybe not. The thought of bad blocks or whatever makes me nervous and could force me to go get a new SSD iMac. Hmmm.
Do recent versions of DW do surface scans? The last version I ran - 4.4 - did not...I think. (It's been years since I've run it.)
Bad blocks on a HDD could eventually cost you all your data if you don't deal with them; they're a fear that's best confronted.
