Disk Storage Requirements

Stream recording requires significant disk space. One minute of captured video/audio from a

1.2Mbps stream (a typical MPEG-1 stream or a high bit rate MPEG-4 stream) requires approximately 9 MB of disk space. By comparison, 1 minute of captured video/audio from a

5.5MB per second stream (a typical MPEG-2 stream) requires approximately 40 MB of disk space. Be sure to have enough disk space free for any intended capture. The amount of disk storage required depends on the bit rate and the recording time. A rough rule is to allow 1 GB per hour for MPEG-1, 2.5 GB per hour for MPEG-2, and 500 MB per hour for MPEG-4.

System	System	Storage Required	Storage Required	Storage
Stream Rate	Stream Rate	per Sec.	per Min.	Required per
(Bits/sec)	(Bytes/sec)	(Kbytes)	(Mbytes)	Hour (Mbytes)

1,200,000	150,000	150	9	540

1,800,000	225,000	225	14	810

2,000,000	250,000	250	15	900

2,500,000	312,500	313	19	1,125

2,800,000	350,000	350	21	1,260

Note The Total Bit Rate in StreamPlayer Plus will be different than what is shown in MPEG-4 settings. The actual rate may be slightly higher than what is shown in StreamPlayer Plus (due to overhead).

8	© 2007 VBrick Systems, Inc.