What dvd regions does it play - Sony DVP-NS50P DVD Player

It's possible that the DVD you are trying to play was manufactured for a different region than the one your DVD player is set to. DVD players are designed to play DVDs that are encoded for a specific region or regions. For example, a DVD player that is set to Region 1 will only play DVDs that are encoded for Region 1.
You can check the region code of your DVD player by looking at the back of the player or consulting the user manual. You can also check the region code of the DVD you are trying to play by looking at the back of the DVD case or consulting the information that came with the DVD.
If the region code of your DVD player does not match the region code of the DVD you are trying to play, you will see an error message like the one you described. One solution is to try setting your DVD player to a different region and trying to play the DVD again. However, keep in mind that most DVD players can only be set to a particular region a limited number of times, and once the limit has been reached, the region code can no longer be changed.
It's also worth noting that some DVDs are encoded for multiple regions and will play on any DVD player, regardless of the region code. If you have a DVD that is encoded for multiple regions and it is not playing on your DVD player, there may be another issue at play.

hi Nigel.
Region codes prevent playback of DVDs in other geographical regions. If you receive a region error while playing a DVD with RealTimes, this means that the region code of the DVD does not match the region code of the DVD drive. ... You can play Region 2DVDs only on a DVD drive that is set for Region 2.

Region errors when playing DVDs with RealPlayer - SUPPORT

https://customer.real.com/.../204041263-Region-errors-when-playing-DVDs-with-RealPl...
How do you change the region on a DVD?Click Performance and Maintenance, and then click System. On the Hardware tab, click Device Manager. The DVD Region tab might not be available for all DVD drives. To configure your DVD drive to play discs from other regions, select a geographic area from the list of regions.
(you could try this link but what ever it tells you to do you do so at your own risk.)
Make Your DVD Player Region Free in Seconds

Can,t be done with the one you have,

Hi there!
North American TVs, consoles and DVD players play video and games in the NTSC format (region 1), while Ireland's and most of Europe's play in PAL(region 2). You best bet to be able to watch your dvd set will be to purchase a dvd player that plays multi regions (these will be a bit more expensive) or to order a region 2 dvd player from Ireland or somewhere in Europe that uses region 2.
Hope this helps!

Region 1 DVD's will NOT play on region 2 dvd players.
You need either a region 2 disk or a region 1 DVD Player.

DVD region is an anti-piracy method to block DVDs from other countrys to be played on a region where that DVD isn't available for selling. You still can watch that DVD by changing the DVD Player region code from options but be aware that you have a limited number of changes, after changes reach 0 you cannot change DVD region code anymore and your DVD player will be stucked to a certain region that you selected.

Where did u bought this DVD player?US,Canada,and Mexico?The DVD disc. used NTSC region format.Asia,Europe,Africa,and the Middle East.The DVD disc. used PAL region format.They can't be mix or it will not play as u find out.If u move in and out to another region of the world.U must have a regions free DVD player to play either NTSC or PAL regions.

Check the owner's manual to see what region your dvd player is for. What ever that region is is the only region it will play.

Example: If you have a region 1 dvd player and a region 4 dvd, it will not play on that player. The regions must match. The dvd usually has the region it is for listed on the back of the dvd case near the bottom.

Also, Any dvd's that are Region 0 or are labelled "Region Free" will play on any player.

Hi, guessing you are from the UK? Different countries operate different regions for dvd's for instance the UK dvd players are set up to play region 2 discs, and US dvd players are set up to play region 1 discs.
This is because dvd release dates are different around the world and this stops people buying a dvd in the US and bringing it back to the UK and selling it before its official UK release date for example.
Your choices are either to play the dvds on a PC where often the dvd software will allow you to change region a number of times (be careful though as some players will let you change region say 5 times and then be locked to that region)
Or to get hold of or buy a multi region dvd player which plkays dvd'd regardless of their original region
Hope that makes sense, good luck

DVD movies have region codes, and they typically only play on a player or DVD-ROM drive sold in the country where the DVD movie was sold.

The actual region code is in one byte on the DVD (digital versatile disc). The DVD player or drive has a region code in its firmware. Personal computer DVD-ROM players often have the code in the software or MPEG-2 decoder. The two codes must match for the player or drive to play the movie. The code is also printed on the back of a DVD package, superimposed on a small image of the globe.

DVD regional locking is used to control which DVD movies play in which countries or groups of countries. Movies are often released on different dates around the world. Region 1 has its own player that will only play Region 1 discs. Likewise, Region 2 players can only play Region 2 discs and not play any of Region 1's discs. The six codes are:

1. United States and Canada
2. Europe and Japan
3. Southeast Asia
4. Latin America and Australia
5. Russia, rest of Asia and Africa
6. China

please check the DVD region code again and what PLAYER u are using to play on PC / LAPTOP??

where did you buy the DVD player??