thanks everyone :-)

Well, it seems that I'll have to use tablet instead... You see, we're going AMS-HKG-DPS (final destination is LBJ, but not on CX) for our 20th wedding anniversary and I've been thinking about a multimedia gift for my wife. I thought it would be nice to create a kind of presentation, write it to pendrive and ask the CX crew before boarding to put a nicely decorated box with pendrive (with instructions, how to use it) on my wife's seat :-)
However, since it's complicated to connect such pendrive to IFE and quality of image (if connection is successful) is low, I'll show this presentation on tablet, not necessarily on board of CX plane...

Nevertheless, thanks for helpful information :-)

Best regards, Bartek