that is definitely a domestic cat
the one I saw was about the size of a german shepherd (the dog) and it wasn't ambling along, it was stalking like a leopard.

edit: "Also, you can tell from the size of the track that it is much larger than a house cat." I'd say you can tell from the size of the track that it is a domestic cat.
( Vipros. clever got me this far, then tricky got me in, Tue 28 Jul 2009, 13:50, 2 replies)

Er, no...
Those tracks are the best part of 5 feet apart and whilst I'd agree it clearly isn't the size of a tiger, I've never seen a house cat that would measure up to that thing.
(Pope Jamiroquai III, Wed 29 Jul 2009, 0:02, closed)

You haven't seen
my sister's cat.

(No pussy jokes please)
( K2k6 has a proper job these days, Wed 29 Jul 2009, 8:19, closed)

Mmmkay
Even the biggest, burliest cats don't have a tail that's about 3 feet long.

It's difficult to make much detail out in the video, but it's got the balance to walk on the tracks. Still doesn't look massively 'cat-like' in it's movements.
( Rookie You'll have to speak up, I'm wearing a towel, Wed 29 Jul 2009, 14:25, closed)