View Full Version : Hardrive Size for 720P feauture vs. 1080P feature
05-18-2006, 11:57 AM
I'm looking at external harddrives and I'm curious as to how much space I would need if I were to store say 10 hours of footage at 720P vs 1080P. I'd like to shoot at 1080P of course but it may be cost and size prohibitive.
05-18-2006, 12:54 PM
DVCPRO HD 720p60 running at 59.94 = 524.79 GB for 10 hours.
DVCPRO HD 720p24 running at 23.98 = 214.06GB for 10 hours
DVCPRO HD 1080i60 at 23.98 = 421.22 GB for 10 hours
DVCPRO HD 1080i60 at 59.94 = 1.04 TB for 10 hours
Got this handy thing called the AJA Data Rate Calculator. Google it. It is on the AJA site.
05-18-2006, 07:04 PM
Thanks for that converter link. I have been pouring over these forums for the last few days but I am still unsure about one thing regarding the HVX data rate.
If you use FCP on a powermacbookpro (let's just say a mac laptop) and record to the internal/external drive is the data rate less with the lesser frame rate?
I keep seeing little bits of info that lead me to believe that if I shoot 720 on the P2 card I can save space by going from 60p to 24. But that might not translate to the data spit out the firewire connection to the laptop? I mean that is what 24pa, 24pn, 24pz :) are about but the info is spread out all over the place that I feel I can't get to an informed answer on my on research.
My specific need is that I want to shoot a ballet that has 2 acts which are each 1 hour long. I would love to go straight to a laptop drive but would be fine with an external USB/firewire400/800 drive. If going to 24p saves a lot of space and bandwidth I would be happy to shoot with it, or 30p if temporal problems with the movement were too much.
EDIT- and now I see this thread was about P2 cards. HOpe this question doesn't mess things up.
05-19-2006, 12:08 AM
shooting 720p 24PN is the most space saving feature. Plus it blows up to 1080P rather nicely.