Orignal Pro is an ANALOGUE in SD only scaler. It cannot accept anything above 480i or 576i for processing. It uses the SIL504 and co-processor solution for de-interlacing along with Lumagens first generation scaling algorithms. It has 5 point RGB gamma calibration capability
Current Pro: Is an SD and HD capable processor. It can accept these soruces as either DIGITAL or ANALOGUE video. It has a Lumagen/Sil504 HYBRID SD de-interlacing solution and Lumagens own proprietry de-interlacing for HD. Scalinig is done using Lumagens own, higher accuracy, algorithms. Full 11 point RGB gamma calibration is now on board. The current Pro also accepts RGBcvS from Scart enabled sources and has multiple memories assocaited to the various incoming signal types. It is a higher performance, more flexible, scaling solution.
Gordon