I purchased a Sony DVP-NS305 from Jungle.com (now in liquidation) in October 2002. It was advertised as Multi region. I find out later it is not multi region. Before Argos (who now control jungle) will entertain any claim they want me to prove it was advertised as multi region. Has anyone got a Jungle.com advert from October 2002 showing just that - Please, pretty please!
Sony do not make a multi-region DVD player. Sony, Toshiba and Panasonic players all need to be chipped to enable multi-region playback. There are many companies that sell them ready chipped but this has been done by a third party not by the manufacturer. I know this doesn't help you but as Sony don't make region free players you will have to rely on finding an old Jungle ad. One of the area's that can get people confused is that DVD players sold in Britain as region 2 players will play both PAL and NTSC (north american) formated discs. Assuming they are not region coded. Most discs are! The region code is an extra bit of software on the disc that the player looks for when the disc is put in. If the code on the disc and player don't match the disc wont play. Region free players don't do this and thus will play all PAL and NTSC disc's. There is also the issue of RCE. I think this is for another post however.
tamc98 is absolutely correct in saying that DVD player manufacturers do not make multi-region machines. As said, chipping is done by a third party, which by the way, invariably invalidates the manufacturer's warranty. However, most reputable vendors issue their own warranty for chipped machines.