I'm guessing the hard drive in question was NOT the primary drive (the one with Windows.) If that's the case, did you use your media player (or like program) when you had the other hard drive in? What happens is when a file (or files) is linked to a resource (ie, Media Player or such), and that link is lost via file deletion, or media is removed, the program attempts to locate or map to the files it lost. This is a function of the Windows file sharing structure, especially when dealing with dynamic link libraries (DLLs). If you ran the program and it no longer found the files, it probably assumed you deleted them and re-mapped itself to someting else. Putting the old drive back caused Windows to look for the pre-existing links which were lost. So, Windows orphans the file(s) and regisrtry entries to other links that it thinks are best suited (you know...the little flashlight thingy telling you its going to point to something it thinks you want?)
To TRY and get these things back where you had them, go here:http://www.utpb.edu/siteserver/docs/ssa_learn_hhrg.htm
The second one points you to a trial program that claims to be able to recover lost data, although not all of it. Worth a try.
Edited by Grumpdaddy1, 21 October 2005 - 06:44 PM.