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HDV to Blu-ray
I’m assuming that in the near future it will be possible to author and burn Blu-ray DVDs on a Mac. But I don’t understand whether the particular mpeg2 compression used by 1080i HDV is compatible with Blu-ray. In other words, once I finish editing an HDV program in FCP, will I be able to export it in its native form (for example, by way of a self-contained QT file) to a future version of DVD Studio Pro? Or will it be necessary to recompress the program using different mpeg2 parameters (and probably adding a bunch of new artifacts)?
Alfred Guzzetti
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9 Replies
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DVDs require compression, even Blu-Ray, it just compresses less that a DVD-5 because the discs hold more data. So, encoding for Blu-ray discs is not terribly different from any other encoding in that a bad encode will degrade the image and create artifacts. However, if your original video looks terrific and you do a good job encoding, then the final product should look great too.
DRW
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HDV uses an mpeg transport stream. I believe DVDs, HD-DVDs and Blu-ray use an mpeg program stream. There are differences in how the data is muxed. Maybe someone more techno savy can chime in as to those diffenrences. The end result is that HDV has to be re-encoded for any DVD distribution.
joe
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I know there are numerous tools that can demux transport streams and remux them into program streams (and vice-versa) without any re-compression. Whether or not you can convert HDV to Blu-ray-friendly MPEG-2, unfortunately I don’t know enough about it.
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Once conformed again (by just exporting a self-contained QT movie in HDV) the MPEG-2 from HDV is compatible with the one used on both HD formats for optical disks. The problem is finding a decent authoring program…
Regards,
Uli
Author of “DVDs gestalten und produzieren”, a book on professional DVD-authoring in German.
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Uli,
Thanks for this valuable information. It’s just what I wanted to know. Can it be that a future version of DVD Studio Pro will give the needed authoring tools?
Alfred Guzzetti
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I’d be very surprised if it didn’t!
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I’m quite sure it will, but maybe Apple wants to wait until the dust of the formats war has settled?
Regards,
Uli
Author of “DVDs gestalten und produzieren”, a book on professional DVD-authoring in German.
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Read the Guide that comes with MPEG Streamclip: it will give you a little bit of information without getting too technical. You can even print it out.
Even more simply put:
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..and MPG2 in 422 flavour is comming..
Rafael
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