I was having trouble exporting 3DS files with a default install of [Blender]. According to this [post], I had to edit line 10 of “C:/Program Files/Blender Foundation/Blender/.blender/scripts/3ds_export.py” which fixed the problem. The special ‘a’ characters in the author name had to be replaced with ASCII ‘a’. I also had to install [Python 2.5.4].
I’m trying to work in Blender with two uv sets, but unfortunately most of the exporters and importers are stripping off the second uv set. [forum post]