Ive been in touch with Western Digital and they tell me that the player does not support playback of 25fps files although it will still try and play them. That is why some playback ok and some dont.
Is there any way of recording these streams at a lower frame rate?
Thanks.

I am talking HD files only.

Sorry I forgot to mention that these files play perfectly well on the PC.

I bought this Western Digital stand alone around christmas time and had no problems until recently. I just purchased a PCI DVB_S S2 Terratec Cynagen satellite card so that I can record HD movies etc directly over satellite and then play them back on my HD player. The player supports MKV, TS, M2TS et...