Trading trees are simply a method by which folks can trade recordings with each other in an organized way.

If you have not participated in trading trees before, please see the links below for descriptions of how TREES are run, and for a detailed description of how to do a B+P *(blanks + postage) trade.

About Trees

http://www.harbour.sfu.ca/~hayward/van/miscellaneous/tapetrees.html  
http://www.vmtrades.de/tree.html?TWRemastersV4V5+faq

About B+P (blanks + postage trades)

http://www.mcnichol.com/bnp/
(Note: Tyvek envelopes are not necessary. A bubble mailer in a slightly larger outer envelope should work just fine. Also, do NOT include jewel cases -- they tend to break. Instead, use a paper or plastic sleeve to protect the CD's.)

About SHN (audio compression tool)

http://research.umbc.edu/~hamilton/shnfaq.html

SHN 1-2-3 easy setup and operating instructions
http://members.cox.net/yesshows/SHN.html

About EAC (Exact Audio Copy -- audio cloning software)

http://www.exactaudiocopy.de/  
http://www.ping.be/satcp/tutorials.htm

EAC (Exact Audio Copy) 1-2-3 easy setup and operating instructions
http://members.cox.net/yesshows/EAC.html
(Note: be sure to continue to page two at the bottom . . . )
http://members.cox.net/yesshows/EAC2.html

And, for advanced users, a few drive offset databases:

http://www.accuraterip.com/driveoffsets.htm

http://www.daefeatures.co.uk/search.php?DAEDriveFeatures=9e875b47383962304ca42