360 Systems MAXX-2420EX - Manual (Page 79)

MAXX-2420-EX Owner’s Manual Page 79
The following formats are supported:
JPEG-2000 (.mxf)
JPEG-2000 files wrapped in the .mxf format. The mxf type is Operational Pattern OP1a. The
audio is 24-bit 48KHz PCM (uncompressed) in 8 individual tracks.
These files are compatible with the Edius non-linear editing program from Grass Valley. See
the next section for more information.
JPEG2000 format .mxf files from the Grass Valley Infinity camcorder are also compatible.
JPEG-2000 (.vcf)
JPEG-2000 files are also available in .vcf, a proprietary 360 Systems format. This is a very
simple collection of the native component files. It has some minor performance advantages
over .mxf and can be useful in certain applications. It is not recommended in applications
where there are many subclips created as the files contain all of the data regardless of the
settings of the head and tail pointers. A four second clip taken from a 1 hour file will contain
the entire hour of data.
In automation controlled systems that create subclips by reference to a single master file, this is
the preferred file type to use for mirroring content between servers or to backup storage. It is
also the format used by Telestream Flip Factory to transcode files to and from the MAXX server.
The performance advantages are only significant when the system is being used near its
maximum capacity (of both channel use and clip bitrate) and FTP transfers are required. While
.mxf is interleaved, .vfc carries the video, then the audio, then the ancillary data. This means
that only one file is read or written at a time, and the processor does not need to deal with the
interleaving of the data.
MOV (.mov)
MOV-wrapped graphics can be imported and rendered for playback as JPEG-2000 files.
Animation sequences to be sent to the MAXX-1200 should be saved in Uncompressed
QuickTime format. An alpha channel may be present. Clips may be up to 1 minute in length.
(Note that this is program dependent, video with low detail or partial coverage (such as lower
thirds) may be able to run longer.)
IMPORTANT
When Exporting from some NLEs such as Final Cut Pro, you must Export to a storage volume
that is considered a Macintosh volume in order to create compatible .mov files that are over
2GB. This can be an issue when attempting to Export directly to network storage locations. In
practice this amounts to a maximum clip duration of about 5 seconds. If this is exceeded the file
will fail during the render when sent to the MAXX HD.