Not to contradict Ian, but HDCAM is only FOUR tracks... HDCAM SR (which is a different beast altogether) has the possibility of up to 12 tracks. Given that SR decks costs more than some folks houses, they aren't terribly common at festivals, the more affordable HDCAM is, so double check which one.
Other than that, both Ian and Shaun are correct about watching the specs more than anything (especially if you have a distributor).
Also two technical things to be aware of. First, if it IS surround and HDCAM (not SR), SOME festivals will want Dolby E (although not too many) so that may become an issue as either separate encoding hardware or software is necessary and it's still kind of finicky, plus there are multiple specs as to how to deal with the delay it causes. If it's stereo or LtRt (probably safer at most festivals) then don't worry about it.
Second many of the Sony HDCAM decks have a four frame offset issue when laying back via LTC so be aware of this. Do a quick Google search for your deck name and LTC offset to see if it has the issue - although it will be pretty obvious when you layback! :)