Mac OS X error code -36

While drag-copying my iTunes Library to an external hard drive:

"The Finder can't complete the operation because some data in "1987 Trains.mp4" can't be read or written.  (Error code -36)"

See this discussion:
https://discussions.apple.com/message/10770701#10770701


And this quote within that discussion:
"if deleting ..DSStore works you may have found the source of the problem here. there were a LOT of the posts about people getting error -36 when copying folders from FAT drives and AFAIK, nobody could figure out the reason."


Also see:
http://www.macyourself.com/2010/01/07/solution-to-finder-error-code-36-in-10-6-when-copying-folders/

Architectural plans for Model Railroad buildings

This site has some great, free plans for a wide variety of structures.

http://www.ag.ndsu.edu/extension-aben/buildingplans/miscellaneous

for example, this plan is for a 6 by 12 roadside stand. Something every 
layout could use:

http://www.ag.ndsu.edu/aben-plans/5699.pdf