Real time sync monitors folders and start sync as soon as there are files were created, updated or deleted. It's the easiest and the most effective solution you can find for a file sync product. It doesn't scan folder at all, this means it almost doesn't use CPU and memory resource. It also means real time sync always has same and the best performance no matter you have one hundred or one million files.
TO MAC USERS: If RAR password doesn't work, use this archive program:
RAR Expander 0.8.5 Beta 4 and extract password protected files without error.
TO WIN USERS: If RAR password doesn't work, use this archive program:
Latest Winrar and extract password protected files without error.