How many GBs for 1 hr AVI DV?

I'm trying to figure out how many GBs it takes to store 1 hr of DV AVI (I know DV runs at 25 megabits per second, but I forget how to convert that to bytes; 1 byte = 4 bits or was it 8?). My calculations (probably flawed) bring it to the ballpark of 20+GBs / hr.

Anyhow, any feedback would be appreciated.

Also, my friend captured an 1hr of Quicktime DV via FCP HD and says total file size is less than 11GBs (is the Apple DV codec that much better compression-wise compared to windows based codecs?)

 

Ok, nevermind looks like I figured it out.

 

for uncompressed video, i generally follow the rule of 1 minute = approx. 1GB (i think it's more like 1.2GB) of storage...


...but that's uncompressed...


anyway,

Nick "Shorty" Long

 

It's 12 to 15 gigs for 1 hour, from what I've seen.

 

I just did a DVD project for a co-worker and had about 23 GB for 1 hour and 50 minutes.

 

i dunno if pal and ntsc is different but 1GB of drive space will give me 4.5 - 5 minutes of PAL-DV

 

I was really excited, until I realized this thread wasn't about Ghostbusters.


-Rico

 

1 bit = 8 bytes...
and in FCP, it is somewhere around 1 hour = 12 GB.
From my experience.

Matthew

 

heh, it's very rare that i work with compressed video of any sort these days

anyway,

Nick "Shorty" Long

 

Yea, 12 gigs sounds about right. Movie Spoof was 45 minutes and took up about 9-10 gigs.

 

Well for FCP it comes out to 13.5GB per hour.

 

Something to remember is if you're using MS Movie Maker to put stuff back onto tape you'll need free space equal to the size of your file. Eg. for an hours worth of DV that clocks in around 12GB, you'll need at least 12GB free on the drive.

 

I've heard 13.