So, I found a couple of threads on these programs, but both programs have morphed over time. 2007 and 2010 threads are obsolete now. I'm curious about perspectives on both of these programs. I used to use CCC back when I had a PowerMac G5 and cloned my internal HD to another internal HD. It worked very well but "scheduling" backups wasn't supported back at that time. So, I forked over the $19 (now $27.95) for SuperDuper! That way, my backups could be scheduled regularly. Well, with the advent of Time Machine, I didn't really keep up with the progress of either program - though I continued to clone my "Data Drive" with SuperDuper! every few days. Anyway, my backup setup might be a bit more anal than many folks out there, but if folks are interested, here's what I have. First, I have a 2009 MacPro so, physical HD real estate isn't an issue. I boot from an SSD and have my user folder and all data stored on another 3TB drive. Time Machine does it's incremental backups to another internal drive but excludes many of my larger folders like Movies and Home Videos. Those are cloned, but due to lack of space, I don't incrementally back them up with TM. So, I've re-fell-in-love with CCC. I had a HD fail last week and SuperDuper choked on the bad sector of my Data Drive and shut down mid-stream. I didn't know what had changed, so I tried CCC. CCC passed right over the bad sector and continued the backup (2 TB total) and simply reported the error at the end (lost edits to one home movie, and two e-mails...). Great! So, Now I have a new drive installed and all is well. I also discovered a new feature (new to me at least) on CCC. CCC (like TM) lets you create a Temp-folder for any deleted data from your original drive. This creates a psudo-time machine style backup that you access through the finder. It will continue to fill up the drive until it's down to 15GB. This is really a huge benefit and I don't think SD has the same feature though it offers a different backup scheme called sandboxing - I'll leave that for someone else to describe. Anyway, I just thought some folks would like a recent review of these two programs. Since CCC has added scheduling and the temporary folder option, I think CCC is in the lead now with new features (ad supported like everything else iOS these days) and I am waiting for SuperDuper! to catch back up. Hope this helps someone. Opinions on CCC would be welcome since I'm "new" to it again. Success or failure stories?