It may take a bit of reading to figure out the options. But for data discs you can set file system and options to allow file paths longer than 255 characters.
There's also a link to the forum to ask questions directly from the author. If you search there you should find guides detailing how to burn various types of disc.
Also you can try this tool to find paths that are too long: http://sourceforge.net/projects/tlpd/
I just found it in search. Haven't tried it myself.
edit: I just gave this a cursory try. Seems to work well. You can search all drives or select the root of the search. Then it asks for a max.. default is 200. It pops up a text file with the paths of all files that are longer. Looks like a keeper.