Please provide some information about the hard- and software used.

Box type: DM7025
GUI (enigma1/enigma2): Enigma2
Firmware version: 30/12/2006

your question
Can someone point me in the direction of a list of compatible:
- USB memory sticks
- CF cards

I've seen one USB list on another forum, but it seems very out of date.

Is there an upper limit on memory sizes for sticks and cards?

Thanks a bunch