LaCie external hard drive files disappearing
Thank you in advance for any suggestions you may have.
System: I have a brand new 3TB LaCie D2 Quadra drive that I am connecting via FW 800 to my iMac27 inch (2009) and my MacBook Pro. The iMac is running on OSX Lion 10.7.4 and the MacBook Pro is running on OSX 10.6.7.
Problem: This morning I backed up about 120G of media files from another drive to LaCie. I saw them transferred onto the LaCie and they were part of a folder named "2012 media files" Then, without warning, the entire folder disappeared and I haven't been able to find it since. The LaCie shows that only 1.37 TB is available which would suggest that the files are still on the drive. But where?
I've read elsewhere on the forum that there can be problems with the catalog and that these can sometimes be repaired with some sort of disk utility. Can anyone advise what next steps I should take to trouble shoot and whether I need outside help at this point. I am fairly new to resolving these kinds of problems. Oddly, though, this is the second drive IN A WEEK to fail (the other one was a G-Tech Mini 1 TB). So, I'm wondering if my iMac may have some virus causing the problem???
Any help appreciated.