XDCAM Space Requirements

From Help Wiki

Bitrates and space requirements for XDCAM footage can be found below and in this downloadable PDF.


MPEG HD422
(50 Mb/sec)
4:2:2* best for chroma key!
MPEG HD (HQ)
(35 Mb/sec) 4:2:0*
MPEG HD (SP)
(25 Mb/sec) 4:2:0*
DVCAM
(25 Mb/sec) 4:1:1*
1 Minute
500 MB
345 MB
263 MB
270 MB
2 Minutes
1 GB
690 MB
527 MB
540 MB
10 Minutes
5 GB
3.5 GB
2.7 GB
2.7 GB
30 Minutes
16 GB
10.5 GB
8 GB
8 GB
1 Hour
32 GB
21 GB
16 GB
16 GB
23 GB Disc
43 Minutes
60 Minutes
90 Minutes
85 Minutes
50 GB Disc
95 Minutes
145 Minutes
190 Minutes
185 Minutes


  • Chroma Subsampling Rationale:
    Because of storage and transmission limitations, there is always a desire to reduce (or compress) the signal. Since the human visual system is much more sensitive to variations in brightness than color, a video system can be optimized by devoting more bandwidth to the luma component (usually denoted Y or first digit in the notation), than to the color difference components Cb and Cr. The 4:2:2 Y'CbCr scheme for example requires two-thirds the bandwidth of (4:4:4) R'G'B'. This reduction results in almost no visual difference as perceived by the viewer.


Chroma subsampling.jpg