Jekyll DVD won't play in PC, is it copy protected? (region 2 PAL UK)

Hi

Got a question for you clever folks

I’ve bought a Jekyll DVD and it plays fine on my DVD player (Phillips) but completely fails on my PC and my laptop (both XP but different DVD drives) - it seems to just sit in the drive and spin constantly or make ‘seeking’ type noises

Is it possible that there is some form of copy protection on the DVD thats causing this? My PC and laptop both play other region 2 PAL DVDs with no problems and there is nothing on the packaging that says it is either copy protected or won’t play on a PC.

This is also the second DVD of Jekyll with the same symptoms as I returned the first one thinking it might be faulty.

Any thoughts or suggestions?