How to Recover a NTFS-formatted RAID 1 Enclosure with 2 Hard Drives?

I have an enclosure that supports two hard drives in RAID 1 mode. A few days ago I connected the enclosure to my laptop and Windows was giving me errors saying it couldn’t read/load the D: partition. I believe it must have been disconnected without "removing it safely", maybe because of a reboot or sleep, I’m not sure.

The fact is that I can’t see the files anymore, neither in Windows nor Linux. Nothing is able to load the partition. They’re two 4GB HDs NTFS-formatted. I tried using TestDisk, but it started giving me errors after 75% of the analysis (and 5 days later). I can try again, but I really thing it’s a simpler situation than usual. I haven’t formatted anything by mistake so I believe the files are there, it just seem to be a problem caused by disconnecting the enclosure without "removing it safely".

Does anyone recommend any software or any way to recover it?

Btw, I’ve tried doing a simple "chkdsk D: /f" with no success. However, chkdsk does recognize the partition as NTFS whereas the Disk utility from Windows recognizes it as RAW.