In general we recommend shooting in the HVX's 1080p mode as it does resolve a little more horizontally than than 720p (960x720) mode can store. In addition, the 1080p mode is significantly less compressed. Why? DCT compression (like DVCPRO-HD) has trouble with excessive detail (as DV shows with its mosquito noise, plus blocking in shadow details), so storing 1248x702 worth of detail in 1080p24's 80Mb/s is much cleaner than 720p24 40Mb/s. So shooting 1080p is a good way to reduce artifacts. In the end we recommend the 1080p-to-720p down-res when converting with HDLink, as the workflow enhancements of more efficient disk usage, higher editing performance with more real-time operations and square pixel processing, will out-weigh the gains of a 1280x1080 (or 1440 or 1920) timeline.
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