Mac & PC
I have a Mac that I use for editing and I want to download video files from my Mac and send the drive to another editor who uses a PC, will he be able to access the files and download to his PC?
If the drive is formatted in HFS+ then no, your best bet is to format the drive in ex-fat which is compatible with both Mac & Windows. Fat32 also works with both but has a 4GB file limitation so ex-fat is better if dealing with larger files.