Using player firmware upgrade to disable region coding in order to access your DVD content, may currently be the best option to avoid running afoul of DMCA and recent updates to Copyright exceptions. Cases which challenged DMCA provisions relating to disabling DVD region coding, appear to indicate that doing so does not violate the circumvention provision of DMCA, such as disabling CSS(encryption) would. The rulings appear to recognize that region coding is used more for marketing purposes, more so than for protecting copyrights of legally purchased DVD movies.
The problem with using a software "rip" solution to specifically remove region coding in a movie, is that there appears no way of doing so without circumventing CSS encryption if applicable? This would be necessary since part of the CSS protocol uses the specific DVD id. So you can't simply just copy an encrypted movie DVD to a hard drive, remove the region coding, and re-burn the DVD. It won't play as the CSS DVD id does not match.
Though the DMCA apparently does not prohibit an end user to own such "rip" software, it is illegal for a company to manufacture and distribute such software that circumvents copy protection. As such, please avoid posting links to such software in the forums.