Talk:XDCAM

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I have expanded the page as much as I can for the moment. Hopefully this will help somewhat. Sycophant 22:56, 21 March 2006 (UTC)

[edit] Professional Disc vs. Blu-Ray -RW

What's the difference between Professional Disc and Blu-Ray? Pro Disc seems to be an exact copy of rewriteable Blu-Ray in a disc caddy. --72.202.150.92 04:00, 12 March 2007 (UTC)

They are very similar formats, I believe - the Blu-ray entry has this to say:

Blu-ray Disc is similar to PDD, another optical disc format developed by Sony (which has been available since 2004) but offering higher data transfer speeds. PDD was not intended for home video use and was aimed at business data archiving and backup.

They are similar but different as far as I know.

--Sycophant 08:30, 13 March 2007 (UTC)

[edit] Conflicting information

The entry states that one format XDCAM uses is MPEG IMX, which MPEG-2. Then later it states MPEG IMX does not use temporal compression. But doesn't all MPEG-2 streams use temporal compression? --24.249.108.133 15:23, 5 October 2007 (UTC)

MPEG IMX is a technically MPEG-2 4:2:2 P@ML which is I-frame recording, so all compression is intraframe. There is no temporal compression, only spatial compression. Sycophant 07:47, 7 October 2007 (UTC)