Hi guys, I recently replace my stock hard drive in my 2009 MBP 13" with a WD Scorpio Black 320 GB. After I put my hard drive in, I notice the hard drive keep working even though I'm not doing anything. In the activity monitor, I can see it has a read and write speed of about 5 to 20 MB/s and that the process "mdworker" is running at about 20%. I know that mdworker is use for spotlight indexing, but since I used carbon copy cloner to transfer all my data, I shouldn't need to index it again, so I am worry it's doing something weird. Also, I notice that my boot drive takes significantly longer (1:15 vs 0:50) with the new 7200 rpm drive, which doesn't make sense to me. Do you guys have any idea what's going on?