What is the difference between DVCPRO HD and HDV?
There are several fundamental differences between the two technologies. DVCPRO HD uses intraframe compression, which means every frame is compressed, recorded and edited independently. HDV uses long Groups Of Pictures frame compression that interpolates presumed frames and is not frame independent. This is of critical importance during the editing process and in general requires rendering. DVCPRO HD has 4:2:2 color sampling and HDV has 4:2:0 color sampling making green screen and compositing work much easier in DVCPRO HD. DVCPRO HD is a compression scheme and can be found in tape or P2 (solid state memory) implementations. HDV is a tape-based format, with low data rates, 25Mbps or 19MBps, only recording onto tape. DVCPRO HD is a SMPTE standard. Different manufacturers implement HDV in different ways. One cannot exchange content shot with different brand names of HDV cameras. Also, HDV uses embedded and compressed audio, where DVCPRO HD uses uncompressed audio with 4 to 8 discrete chann
