Unlock code sony dvd dvp-sr320 - Sony Televison & Video

SOURCE: need to unlock code for sony dvd

After getting clarification from Fixya I can pass the links below to you to check yourself

Some players are harder than others to do this but you may want to try here or here
Comments:
Toshiba's and JVC's are the harder ones to do

I use a Phillips myself as it is not only cheaper but has much more going for it than many of the higher end units. i throw anything at it and it just plays

The older the unit that harder it is to do the region free thing with.
I let my EX have the panasonic (big grin)

If you cant find a fix then look at the codes available for cheaper brands and how easy it is to do it before you purchase one

SOURCE: DVP NS15 DVD unlocking

i have a DVP LS500 of which i purchased from my local Sony dealer i asked for it to be region free all he done was got a one for all remote and entered a 4 digit code hey presto region free hope that helps

SOURCE: need region code for dvd player sony dvp-sr200p

unlocked dvd sony dvp sr200p code

SOURCE: In Need of DVD code for Sony DVP-SR200P

Unfortunately the only region code your Sony will play is the one that is printed on the bottom of the unit.

SOURCE: Unlock regional code for Sony DVP-NS575P

1) Turn your DVD off. 2) Use the remote control and press: 
- Display 
- Top Menu 
- Clear 
- Power 
This should power the device into Service Mode. 
3) Choose option 2 and then choose option 4. 
4) There should be two fields: Input Code and Current Code, each one with 5 chars long. 
Type: 12450 
Then push zero on all the 5 places of the first and the second field. 
Push ENTER. 
5) There should be a zero on the device display, meaning that all regions are free. 
6) Press POWER to turn it off and you're done. 

Let me know if it works!