Using the info from this thread,
http://www.dcevolution.net/panasonic...d=32&Itemid=54
and
http://www.avsforum.com/avs-vb/showt...&&#post8098532
I have successfully managed to region free a Panasonic S-35 DVD player and a DMR-ES20D DVD recorder (
NO special firmware needed). I used a borrowed One for All Kameleon 6 remote, and the standard Panasonic DVD control (had to use the S-35 one, as I couldn't see a >=10 button on the ES20 control

).
In summary.....
On the Kameleon:
Choose [DVD], [Magic] long enoughfor the rabbit, [0490] to set for a Panasonic DVD. Then set up a special command by choosing [Magic] long enough for the rabbit, [994], [Magic] (only one quick press), [143], then choose a key to which the command will be assigned (I chose "1" on the keypad).
I then did the sequence using the Panasonic remote, and the Kameleon:
Enter, 6, >=10, << (on Panasonic)
1 (on Kameleon)
Audio, 8, 1, Subtitle, 4 (on Panasonic)
The S-35 was a little troublesome, and took around 5 attempts before it worked. It would always pause after the Kameleon code was sent with the message FT02. This is easily reset by pressing "cancel" on the DVD remote, with the DVD player initialising again (
no special remotes required). Try pressing the keys as quickly as you can - I think I may have been too slow for the first attempts. EDIT: the S-35 apparently shows a line of dots, "open" then comes back on (I was told this by my partner, as I hadn't noticed anything while concentrating on pressing the correct keys - must've been really quick!)
The ES-20 worked first time, with the front display pausing (as if reading a disc), then coming up with the "Hello" message again when it was done.
So, many thanks to the wonderfully intelligent people who worked on this, and decided to share the secret for free with the community, instead of charging for their hard work (which they would surely be entitled to do). You are what makes the Internet great.
A final note; if you don't have the tools or the inclination to do this yourself, a single-use remote from one of the multi-region sites mentioned earlier will no doubt do a great job.
If you are a tight Scots git like me, this is a free marvel, so good luck