Recording 105
If possible, the full workflow pipeline with the preferred codec should be
tested before a shoot.
Card file format
SxS PRO cards have to be formatted in the camera before they can be used
for recording. ALEXA uses an UDF file system. This file system is read-only
for computers, which means data can be copied from the card to another
device, but the data cannot be manipulated on the card itself.
CARD file structure
SxS cards are named ARRI UDF after they are formatted in the camera until
the first clip is record. Clips are stored in a folder named exactly like the
card. In addition to the clips, an XML file named like the card and the folder
extended by _FCP (example: A001R1JL_FCP.xml) is created by the
camera. The XML file is according to the FinalCutPro XML specification. If
the XML file is opened in FinalCutPro directly from the card, all clips are
imported as one bin into FCP. If the clips are copied from the card to another
destination, the file paths in the XML file have to be adjusted to match the
new file location.
Figure 80: Screenshot of ALEXA SxS card under Mac OS X
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