DVD HT503SH tells me to check regional code
 

my dvd HT503SH tell me to check regional code it doesnot play the dvd how can I get the regional code

Unfortunately, that's just not something I have an answer for.
However, hacking a DVD player isn't really necessary.

Make the DVDs region-free instead!
Instructions are here for you: http://www.digitalfaq.com/forum/show...ions-1948.html

Thanks, and welcome to the site. :)