Ahhh….Profle 2. Thought you said region 2.
It could be your profile 1 player just doesnt play burned discs….they are old. Im surprised you found profile 1 players in a store….are your sure youre not talking about region 1 or 2 players, not profile 1 or 2? Theres a difference
If you made a PAL project in Encore then it ,most likely, transcoded what you have to 50i.
Here are the specs
1920x1080x59.94i(=29.97fps interlaced), 50i(=25fps interlaced) (16:9)
1920x1080x24p, 23.976p (16:9)
1440x1080x59.94i, 50i (16:9) AVC / VC-1 only
1440x1080x24p, 23.976p (16:9) AVC / VC-1 only
1280x720x59.94p, 50p (16:9)
1280x720x24p, 23.976p (16:9)
Standard Definition Video
720x480x59.94i (4:3/16:9)
720x576x50i (4:3/16:9)