I have a 500GB external partitioned into two separate halves. One is for storing things like important documents and other things I don't feel safe having on my internal HDD. The other is formatted into FAT32 and contains movies and music to be accessed from my PS3. (I switch the cables manually for now but plan on buying a switch box) But the problem is only on the "media" half of the HDD where movies and music will disappear for no apparent reason. And on rare occurances, will still show up in Windows but not on PS3.
It's the damnest thing and google and duckduckgo haven't really provided much insight other than "REINSTALL WINDOWS 7!"
From what I can tell, it isn't a virus. My antivirus shows everything as all good. As well as the fact that I use Process Monitor to watch what it's doing from time to time and everything is normal.
So that leaves it down to possible registry errors or somehow my PC, my ISP, or the PS3 are detecting them as illegal (They aren't. I paid for them. But my issues with illegal data being falsely detected are a whole different can of worms for now) downloads and deleting them.
I'm thinking of just reformatting the partition, assigning it a new letter, and downloading everything once again. But I don't know if this will help the registry make new entries for a "new" drive and, therefore, leave my stuff alone.