The reviews are starting to roll in for Walmart’s in-store disc-to-digital conversion service and the consensus is…not terrible. BTIG Research analyst Rich Greenfield took some discs down to his local Walmart and said the experience “exceeded our expectations.” He also posted a seven-minute video of a walk-through. The video also be seen here for those who are not registered users of the BTIG site. Rob Pegoraro of Discovery News was also pleasantly surprised, particularly with the fact that for $5 you can bump up a standard-def DVD to a high-def digital copy. The reviews weren’t all good, however. Dave Zatz of Zatz Not Funny struck out at a couple of Walmarts in the Washington, DC area, where the in-store personnel apparently had not yet been trained in the process. Whether, or not, in-store conversion becomes a real business for Walmart, though, the program is certain to boost Vudu.