If you want to save all the automation, plug-in's etc, then save the entire session folder to disc. It's best if your sessions are SDII files, but it's not imperative. if you just want to send the audio files, select all and go to the audio drop down window (to the right of the edit screen, use the double arrow bottom right to open and close the side window) and choose "Export selected as files) save them as SDII files, create a new folder, and burn this folder to disc as DATA. The user on the receiving end can import these directly into a PT session that has the same bit rate, sample size and file type, (ie: 24 bit 48k SDII) This method makes the total file size much smaller in most cases. Hope this is helpful.