Hi Lars,
The HVX records 24P capture in two different ways at 720P. The first selection is 720/24P. Here it records just like the Varicam, there are 60 frames total, with 24 frames that are flagged as the key frames. These frames can be pulled out of the 60 with the frame rate converter that is a plug-in to 5.1.1 or outside of FCP with the Frame Rate converter that is on the HVX200 product page under Resources. Or they can be left in the 60 frame sequence. Just be careful of where you edit as when it is converted to interlace for broadcast you do not want to have edits in the wrong place. For a more complete discussion please see the techincal White Papers on our website,
http://www.panasonic.com/business/provideo/app_hd_tech_papers.asp
The second way is to shoot in 24PN. This records just the flagged frames and not the padding. You can add pull-down on your output to tape. This mode has several benefits, the first being that it gives you more time on the P2 card by about 2 1/2 times, instead of 1 minute per GB, you get 2 1/2 minutes per GB. The second benefit is that you can just edit to your abandon, place your edit anywhere. When done, FCP will insert the pull-don necessary at the output for tape. This is the way I would work if I were using the camera.
I hope this helps,
Jan
Jan Crittenden Livingston
Product Manager, DVCPRO, DVCPRO50, AG-DVX100
Panasonic Broadcast & TV Systems