I have 3 hard drives. A, B and C. My OS (Windows 7) and programs are on C. I wanted to change the name of A, which was called
Data (A:) to Storage (A:) and when I did, I got this error message when I tried to play a MOV on the A drive. So I changed the letter designation to S and it worked fine, the movie played. Then I changed it back to A and I got the error again.
I want to call that drive A, not S or anything else.
I've unistalled and reinstalled Quicktime several times. No joy.