Your longest gaming marathon?

[amratis]

Once, I made over 20 and a half hours on FF8. I made it halfway into the second disc.

Pretty much ditto. Dunno what it is about the first 2 discs of that game. Never played a game for longer.

EDIT - allthough thinking about it I got further then half way through disc 2, pretty much finished that disc, must have been playing faster maybe.