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Direct DV Mode
With Casablanca Avio, Prestige, Kron and Solitaire, recording using the "Direct DV" feature, the data is no longer re-compressed - as opposed to M-JPEG or MPEG-2.
Video in digital form requires very high data capacities. Uncompressed digital video would need some 27 MB/Second, making a 9GB hard disk full in app.5,7 minutes (if the drive was fast enough - which it isn't). The video world is currently using the following compression methods:
DV, MJPEG, Wavelet are similar in terms of storage capacity (app. 40 minutes using a 9Gb hard-drive). MPEG-2 however, is some 3-4 times more effective (more than 120 minutes using 9GB). Casablanca Avio, Prestige, Kron's and Solitaire's "Direct DV" method means that the data is no longer MPEG-2 compressed but is taken "as is". As each conversion represents a minimal loss of quality this means that theoretically the "Direct DV" method is the best. Most of the times, the viewer can hardly make out a difference - with Casablanca Avio, Prestige, Kron and Solitaire, we'll leave that choice up to the user himself. |
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