Page 1 of GRUNDIG GDV520.........HELP - MULTI REGION CODES?

I am in desperate need of help! I own a Grundig GDV520 and want to know if there is a region code for it, if it is tempory or permanment and does it work? I need it ASAP as i go on my hols in 5 days and want to get some R1 DVD`s abroad if i can!!!!
Thanks

The hack for this player is

1. Press the Menu button on your remote control

2. Press the buttons 1, 6 and then 7 on your remote control in order, one at a time

3. Press the Mute button on your remote control

4. Exit the Menu and insert the disc to play

Hope this helps
Mav