I'm using a BMD DeckLink Studio to capture some DV PAL footage through a SDI port. I strangely get a transparent grid of black squares, specially present in grey areas. I'm capturing massive ammounts of footage, and MJPEG is not an alternative as it reverses DV field order from lower to upper and messes up with the whole workflow.
We have DecklinkSP, HD Extreme 2 and Intensity Pro, all of them have black square grid when export with BM DV Preset. Microsoft DV, Mjpeg and uncompress 8bits, 10 bits Presets exports is fine, capture in all 3 codecs also fine. There's somethings wrong with BM DV Codecs.