Thanks Kristian,
I am a bit clearer now on the JPEG online format although you reply has given rise to other questions:
1. Is Jpeg online, being at 8bit 4:2:2 suitable for postwork like color correction and chromakeying(broadcast standard).I need the advice because my company is a Television Network based in Africa.We are interested in applying the Sony HDR-HC3/Blackmagic Intensity Workflow on a large scale but need to be sure that this low cost workflow will meet Broadcast requirements especially as regards to post.
2.The Blackmagic HD Studio is advertised to work in 10bits 4:2:2 via HDMI.How can this be reconciled if only 8bit sources/cameras have been tested.