The problem with SDI is, that it passes the chroma bug to the external scaler. If the external scaler does not use a FLI2x00 or a vertical chroma filter, you'll end up with the chroma bug on screen.

Depending on what scaler is used, it should be considered before one jumps to SDI or if it isn't better to leave the deinterlacing to an internal card which uses FLI2xx0, masks the chroma bug and pass a 480p/576p signal from there to the scaler.

Also, there is no scaler out there that supports 48/72Hz with proper cadence detection and lock.
The Terranex does not count, since it has no analogue inputs and only a HD-SDI output.

Once such a scaler is out, who knows what chip it will use and if it has a filter.
The iScan HD should have it, but I guess noone has seen it yet. Also it won't scale 720p and 1080i to higher resolutions.

Jaco, if you're a poor 9" crt 'sucker' like me, there's hope for DVI/HDMI input cards. At least for the Sony G90 and Barco 1209 series.

Check avs-forum for details.


Stephan


[This message has been edited by Stephan (edited 12-27-2003).]

- Stephan