Can not play dvd beacouse region codes - Sony DVP-SR200P DVD Player

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

Laser assembly has lost the ability to focus and play back. Replace unit since repair not cost effective.

Look at the region code of the DVD that plays on the vehicle DVD if it is the same of the others that do play it's not a region code issue. If the others are a different region to the DVD that plays or the disc says it is region free. Then you might have a problem with the region code settings on the machine. You can look up the model number of that player to see if you can change the region code.
Otherwise check out the player to see if it needs cleaning or is faulty.

You can't change the DVD coding. That part is how the DVD is recorded. However, your Mac will play DVDs from another region. It just typically defaults to one region. I have deleted the DVD player software (and preferences files) before and reloaded it to play DVDs from another region. If you plan to regularly play DVDs from multiple regions, you might want to look for special DVD software that will read DVDs from multiple regions.

Anon, code to enable playing a DVD on Region 2
Make Your DVD Player Region Free in Seconds

DVD Region Codes and Video Encoding Standards and How to Overcome Them

Home Index DVD Region Codes

In order for you to view a DVD's content, the region code on the DVD and the region code for DVD Player must be the same. Your DVD drive is automatically set to a region code the first time you play a coded DVD. If the region code for a DVD does not match the current region code for DVD Player, a dialog appears for you to change the code for DVD Player.
IMPORTANT: You can set the region code for DVD Player only five times (including the original setting). The fifth time you change the code, it will be permanently set. The following map and table indicate the code for the various regions. Some DVD discs can be played in any region, and are sometimes referred to as having region code 0. These discs can be played regardless of the region to which DVD Player is set.

Alright, just follow these steps and let me know if you have any problems or questions

1. Power and switch on the Durabrand DVD player.
2. Open the DVD disc tray tray or lid.
3. Press Stop.
4. Press 3 - 5 - 9 - 7 (3597 in sequence). Can be done on remote control.
5. Hidden DVD Region menu appears. Select region 0 or 9 using up or down button on remote control
6. Press OK.
7. Close the disc tray and press Standby on the DVD player front

DVDs are ecoded with region codes to indicate what area of the world they are made for. These codes may be 1,2,3, etc depending on which region they are made for.
DVD player read these codes and if the disc region code does not match the region the device is made for, the player will not play the disc.
Region 1 is for USA so most DVDp players made for use in USA require region 1 discs.
Some DVD players called multi region DVD players can be set to play different region DVDs but they are typically more expr=ensive then one region players and the code must be changed each time a different region disc is played.

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??

Hi patjune333,

Welcome to the wonderful and stifling world of DVD region coding! This is a 'security and protection' implementation that has been around for awhile, though most folks have had the luxury of remaining blissfully unaware of it.

See, there are (last I knew) six different region codes in the world. Based on the way that the DVDs are coded (as well as DVD players), discs made in particular regions will only play in particular DVD players. So if you've got a DVD from Australia, which is Region 4, and you're trying to play it in the States or Canada, which is Region 1, this is most likely not going to work. Movies are released on the big screen across the globe at different times, and this is one of the main reasons for the region coding.

Many DVD players (at least PC ones) will give you an option of which region code you wish to use if you try to play a disc from a different region; however, this is not always the case. There are also 'region-free' software programs out there that might alleviate your problem, but I'm not sure about the legality of them. Bear in mind that the Region Coding generally interfaces with the physical firmware on the DVD player so if you use a new player to play a Region 4 DVD you might not be able to play any DVDs from North America.

Here we go - check out this link for detailed info on region coding.

Hope that helps!

Ben