Contents missing


I have a WD external disk and use a Mac.  I had about 400 films (legal … all ripped from legal DVDs).  My flatmate wanted to watch a film and uses a PC (Microsoft not Mac).  She was not able to access the films and downloaded software and still was not able to see the contents of the disk on her PC.  I now have tried to access the films on my Mac but can’t find them.  I suspect that she must have reformatted the disk without knowing.  I am hoping this is not the case.  

Any help greatly appreciated!!!

Thank you,



By default, Microsoft Windows can not interact with volumes formatted for Apple Mac OS systems, and the device may have been formatted. I would recommend performing data recovery by means of applications and utilities available online.