Sound Devices 722 - Manual (Page 50)

722 User Guide and Technical Information
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v. 2.67 Features and specifications are subject to change. Visit www.sounddevices.com for the latest documentation.
to measure the throughput speed of CF medium. Measured numbers greater than 3000 KB/s can
reliably write 24/192 audio.
Not all CF medium can sustain write speeds for reliable 192 kHz recording. Use the speed test utility to
make certain that installed medium can support the selected number of tracks at 192 kHz.
Qualified CF Cards
Several CF mediums have been tested and “approved” for use in the 7-Series, including Lexar Me-
dia, SanDisk, and Kingston Technology cards in capacities from 128 MB and above will successfully
operate in the 722. The unit will support up to 2 TB of data. It is not feasible for Sound Devices to test
all available CF cards for compatibility or maximum throughput with the 722. Use the CF transfer
speed test to verify that an installed card can support the needed read/write speed.
Storage Medium – External FireWire Drives
The FireWire port on the 722 can function in either “host” mode or “drive” mode (see File Transfer
Using FireWire for additional information on drive mode). In host mode an attached FireWire stor-
age volume such as a hard drive or DVD-RAM can be used to record and play back audio files. To
activate host mode select External Drive via the Setup Menu item FireWire: Connection.
Because the 7-Series can write to all available mediums simultaneously the abilility to write to an
external drive reduces the need for post-record copying of sound files.
External hard drive
is attached and
is selected as the
recording destination
External FireWire drives require 2.0-ready 722 hardware. Only recorders specifically labeled 2.0 ready are
able to connect to external FireWire drives as an available storage medium.
When to Use External FireWire Drives
The key benefits of recording to external drives include:
• the choice of drive types include DVD-RAM optical drive or hard drive
• near limitless recording capacity when a large volume external hard drive is attached (up to 2
TB)
• fast, no-waiting simultaneous record option
• post-record copying to quickly back up internal hard drive or CF medium
Formatting
Identical to both the internal hard drive and CompactFlash, attached FireWire drives are formatted
as FAT32 volumes. Upon connection to an unformatted (or non-FAT32 formatted) external drive, the