10
Chapter 1: Basic Concepts And Tips
Calculating Disk Storage
To determine how many minutes of video you can store per gigabyte (GByte) of disk
space, you can use the following chart as a quick reference:
KByte = 1,000
MByte* = 1,000,000 (as disk manufacturers define it)
GByte = 1,000,000,000
__________________
KBytes MBytes Minutes Hour
Per Per Per Of
Frame Second GByte Video (In GBytes)
Compressed
DV 25 (NTSC) 120 3.6 4.6 13
DV 25 (PAL) 144 3.6 4.6 13
MPEG2 4:2:2 208.3 6.25 2.7 22.5
Uncompressed
YUV 4:2:2 (NTSC) 700 21 0.8 76
YUV 4:2:2 (PAL) 844 21 0.8 76
KRGB 4:4:4:4 (NTSC) 1,400 42 0.4 151
KRGB 4:4:4:4 (PAL) 1,688 42 0.4 151
* Windows NT defines a MByte as 1,048,576 (1024 x 1024)
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