First a big round of applause for the Devs and Paradox.
Just recently I read in the SVN log for Blender that a fix has been done to allow longer datablock names.
Datablock name lengths have been a problem for a while, especially back when sounds were added to PyPrp, but since then topics were created to fix the problem in PyPrp, but in actual fact the problem was in Blender, now it has been fixed, and should be in a build from http://www.graphicall.org