A couple of years ago I purchased a LaCie 2BigQuadra - A little Raid setup that I'm sure you're familiar with...2 2TB HDD's in a cute little aluminum enclosure, with a convenient push button way of setting up the Raid array.
Due to some unfortunate circumstances, I was forced to put a lot of my stuff in storage for a while, and when I got this drive out, one of the disks had been removed from the enclosure. I can't remember exactly 'why' it was out of the enclosure, but I think that it was due to the fact that I have another LaCie 2Big that looks just like it, only it's a Thunderbolt drive, and maybe I was going to try and swap drives...I really don't know, as I wasn't in the proper frame of mind.
Short of it is that I recently got the enclosure and the missing hard drive in the same location, and combined the two, only to turn it on and have it not mount, and I got a message saying that the drive could not be read by this computer.
The Raid setting on the enclosure says that it's Raid 1 (safe), but in trying to recover files from the drives, which should then be no problem...even if one disk had failed (but both disks work perfectly)...however, while I can see all of the files that are on the drives, when I recover them, there are lines across image files that look like missing data (that's what I think it looks like anyway)...stripes of missing data...which makes me think that perhaps, in my stupor, I had originally set the drive up in Raid 0 (the default for this particular drive), and then did something boneheaded like switched to Raid 1 without the drives in the enclosure or something...somehow it got switched to Raid 1(?) I'm guessing here...
The bottom line is that I have some incredibly important files on this drive, and I can't seem to get the data lined up so that the disks can be read. When I did a scan, the results came back showing that an image of Adobe Master Collection CS6 is seen twice...that image, I know, was burned to the hard drive when it was functioning, but then I have a huge unrecognized partition...I know this doesn't all make sense...but I wanted to see if there was anything that you guys could tell me to do to get this to come out right...I don't really understand setting up the virtual Raids, but that's what I am playing with now...
Here is a screenshot of my scan results:

Any advice would be much appreciated. Sorry if this is posted in the wrong place...and, please, ask any questions...I don't have a clear recollection of when the drive was last used, but my mind is working pretty well these days

Thanks in advance for your time