ADS Technologies CD or DVD Hardware manual Video Bit Rate, Custom Settings Caveats, DivX Profile

Video Bit Rate:

You will notice that you have the ability to select a video capture rate of up to 15 Mb/sec. You will also notice that any bit rate over 9 Mb/sec. is red in color. This is because any bit rate above 9 Mb/sec. is not supported by DVD players and DVD burners. We allow you to capture at higher rates because some users may want to have the capability to capture at the highest rate possible and don’t have DVD burning as a project goal. Just keep in mind that if you want to burn your video onto a CD or DVD disk, don’t use a setting higher than 9 Mb/sec. or lower than 2 Mb/sec.

DivX Custom Settings:

Set Video format to DivX and you now can select the following capture resolutions:

DivX Profile	NTSC	PAL
Portable	352 x 240	352 x 288
Home Theatre	640 x 480	640 x 576

Note: DivX video is highly compressed and takes more CPU Umph (power) than MPEG-1 or MPEG-2 captures. Therefore we have set the minimum CPU spec as follows:

DivX Profile	CPU Speed
Portable	1.8 GHz or faster
Home Theatre	2.4 GHz or faster

Since captures at lower CPU speeds will not be acceptable, CapWiz will not allow DivX captures on slower machines.

DivX Audio

DivX is a video codec only. Our friends at DivX networks have set the standard for compatibility of DivX files with DivX certified playback devices to use either MP3 audio or MPEG-1 Layer 2 (MP2) audio. CapWiz supports hardware compression of MPEG-1 Layer 2 audio.

The audio sampling rate can be selected by the user as 44.1 kHz or 48 kHz and the audio bit rate setting ranges from 192 kbps to 384 kbps. A higher bit rate will make the resulting file size larger.

Custom Settings Caveats

We have provided lots of flexibility in the manner in which you can capture video at various resolutions and audio/ video bit rates. We have provided this flexibility because many customers have asked for this kind of capability. However, think about your project goal before you begin recording. If your intent is to capture video to be burned to CD or DVD disk, then capture at resolutions and bit rates that are “Legal” for burning and playing back in players. If not, you may find that you have spent hours capturing video only to find that it the DVD authoring software will not directly burn it, or your player will not play it back.

VCD, SVCD and DVD Legal Settings (check our web site for F.A.Q’s and other updates to this list):

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