DRM aside... not an expert by any measure but the tight restrictions on "format-shifting" and limitations of "fair dealing" (as apposed to the broader rights granted under "fair use") come to mind.

interestingly (according to wiki) the act specifically allows "circumvention of region coding." http://en.wikipedia.org/wiki/Modchip#Legality but modchips are still pretty much illegal... thanks FTA... (just fou d this article which lays out a pretty interesting history http://www.gizmodo.com.au/2011/02/mods-vs-lockers-region-cod...).

Copyright schemes (region coding of DVDs for example) exist for the purpose of imposing regional pricing, among other reasons.