DVD 机子和碟片都是有区码的,只有当区码相符时,才能播放。中国是6区,加拿大是1区,所以理论上中国的碟片不能在加拿大机子上放。但幸运的是,现在很多DVD播放机都是按全区来做,只是出厂前通过软件锁定为某一区码,所以这些机器可以通过一些不公开的按键操作来解除锁定。我去年Boxing day买的一台AMW DVD机就已经成功解码,可以放任何区码的碟片。
曾有一个网站介绍解码方法,几乎涵盖所有机器,网址记不清了,用Google搜一下吧。
I bought one from China about 4 years ago and never got problem playing DVDs bought here, only for couple of times had problems play VCDs brought from China. The only thing I need to do was to change the display mode to North American mode. if I set it to auto, it won't work.
And I bought another one from China early this year ( though I haven't got any problem with the old one yet), with over 20k chinese songs, really rocks.