I have a scenario where many users can upload files. Once uploaded, the files are re-named and stored in the relevant folders for those users.

As I understand it, one can only specify one Tempdirectory. If say 2 users simultaneously upload a file each with the same name, e.g. File1.jpg, could this cause problems like overwriting the other's files, etc? If so, what can be done to prevent it?

Thanks a lot in advance

Rob Nagel