Keep in mind that when going from 480p to 1080i, you give up the benefits of displaying progressive film frames or motion-compensated deinterlaced video... the real reasons to use 480p over 480i in the first place. Unless you need the higher density of scanlines provided by 1080i, 480p will probably look better overall.
Question probably belongs in the Video Processors forum. Anyhow, I think the IScans are strictly 480i to 480p. Faroudja and Key Digital make processors that will scale 480p to HD resolutions; there probably are others as well. Not cheap.
I have the 165 and have tried both 480i and 480p from my DVD player into my 165. 480i into the 165 produces a better picture than 480p. However, after extensive comparisons, I still prefer 480p directly into my TV. This post talks about my findings http://www.avsforum.com/avs-vb/showt...readid=195222.
The 165 introduces alot more motion-related artifacts (i.e. jagged lines) upconverting to 1080i. It's a shame because the smoothness of DVDs upconverted to 1080i looks great with static images. Unfortuantely, once motion occurs, the shortcomings of the 165's processing is clearly visible. I've asked other 165 owers to confirm my observations to rule out that my unit is defective. It appears most owners don't use the 165 to upconvert, as I haven't gotten much response.
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