You will need at least the following in order to do this yourself:
A reasonable spec PC capable of burning CD-R or CD-RW
A CD burner
1 Blank CD-R or CD-RW
Software For Burning Your CD-R or CD-RW
If you do not have the facilities to burn your own CD we can supply a CD-R with the file for £4-99 including postage, packaging and VAT, ORDER FROM http://secure.key-electronics.co.uk/Online_Catalogue_Reoc_Accessories_13.html
Procedure
Open a simple text editor and start with a new blank page. Type the exactly the following TSDVDREG-2001-8608201-R0
Save as a file called CREGIN.TXT.
Using your chosen burning software, burn this file to a CD-R or CD-RW. Insert the freshly made disc into the A5 DVD player and after a short while "R0" will appear on the front title screen.
Your A5 is now region free and will play films from any region.
Method 2 of 2
Open a text editor and start with a new blank page. Type the exactly the following:
TSDVDREG-2001-8608201-R0
Select File, Save and call the file CREGIN.TXT
Using your CD Burning software, burn this file to a CD-R or CD-RW
Insert the freshly made disc into the A5 DVD player and after a short while R0 will appear on the front title screen
This hack has been taken from http://reoc.keyservice.co.uk/