Xr Module; Internal Recording Formats - ARRI ALEXA Series User Manual

Recording

12.1.1.2 XR Module

12.1.1.3 Internal Recording Formats

ALEXA XT cameras and ALEXA Classic cameras that were upgraded
with an XR Module can use XR Capture Drives, Sony SxS PRO cards or
CFast 2.0 cards for internal recording. Using SxS PRO cards requires
the SxS Adapter, using CFast 2.0 cards requires the CFast 2.0 Adapter;
SxS Pro cards and CFast 2.0 cards do not allow recording ARRIRAW
data.
The XR Capture Drives are equipped with fast and reliable SSDs. They
share the same small, rugged aluminum housing and mechanical
interface as the Codex Onboard S Capture Drives and Transfer Drives.
XR Capture Drives can be accessed with standard Codex docking
stations.
File System
Depending on the recording format, XR Capture Drives are initialized
with different file systems. XR Capture Drives can be formatted in the
XR Module or using Codex Software (Mac only) in a Codex Single Dock,
Dual Dock, or the standalone Codex Vault.
When the camera is set to ARRIRAW recording, an XR Capture Drive is
initialized as a Codex volume, which offers 455 GB of storage space.
This allows for 47 minutes of 16:9 ARRIRAW recording at 24 fps or 9
minutes of ARRIRAW at 120 fps. The file system is read-only for
computers.
When the camera is set to ProRes 2K/HD or DNxHD recording, it uses
one SSD in the XR Capture Drive and initializes it as a UDF volume. This
offers 229 GB of storage space, which equals over 100 minutes of 16:9
ProRes 4444 in 2K or three hours of ProRes 422 HQ at 24 fps. The file
system is read-only for computers.
SxS Pro cards and CFast 2.0 cards can only be used for ProRes 2K/HD
or DNxHD recording. These cards are always initialized with the UDF
file system and have to be formatted in the XR Module with the SxS
Adapter or the CFast 2.0 Adapter, respectively.
ALEXA footage can be captured as QuickTime movies using an Apple
ProRes codec, as MXF files using an Avid DNxHD codec, or – with an
ΤΜ
XR Module – as unencrypted and uncompressed ARRIRAW file
sequences.
Notes: Recording in Avid DNxHD requires a license key. Recording ARRIRAW
internally requires the XR Module and works only with XR Capture Drives.
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