File corruption can represent many things. For a start, it means the finished download file does not 100% match with the original hash of the file that you download the moment you chose to download the file. It can be as simple as description of file not matching original or could be more severe such as packets of data not matching which means at some point in playing it may have some problems. At this point I wouldn't worry about it.

Doesn't anyone know how to get back these partial downloads? There has to be some way. No one answered my previous question about version 4.14 having a bug causing this problem. Should I roll back to the previous version?