dharmaworker

I'm making audio wav recordings of myself reading, and when I save the file, then go back in later and reopen it to work on it some more, it's all staticky! I can't get rid of the static, and it wasn't there when I closed the file! Can anyone help me? This is hours and hours of work, worth hundreds of dollars in income lost if I can't fix it! The problem happens when I close the file. I can save it without any problems, but if I close it, then when I reopen it, it's all staticky. Can anyone tell me how to get rid of the static? Is it my computer?? I can't understand why this would happen just from closing and then opening a file...