Our recordings are usually for archival purposes only (no editing). Currently, we record directly to hard drive and a dvd recorder from broadcast switchers. However, some of our events are better served with the scaler or eventix as the switcher; 1-2 cameras, multiple computers, split screens. All of our scalers are vga out. I have tried to use a scan converter, but the output resolution is higher than the converter can handle.
Scan conversion looses heaps of quality, maybe a HDMI to VGAadapter and a Blu-Ray recorder. You can't record to DVD in VGA quality.
Hope this helped.
Nick