Hello! I have a friend that's studying production in college and he has to have a short film done for tomorrow. He's looking for an external hard drive. He received one from another friend of mind who's a PC user, and he can't put anything in the Hard Drive (because he's working on a Mac). I also noticed that I have an external hard drive, but ever since I changed to Mac (Music Production) I can take things out of the hard drive , but I can't put anything the same problem my friends is having, is that because it's formatted for windows or something?? Could some one please shed some light upon this situation?