File Operation Restrictions - Sony 3-270-589-12 (1) Operating Instructions Manual

File Operation Restrictions

This section explains which operations are possible on
files stored in each directory.
When required, the following operation tables distinguish
reading and writing from partial reading and writing.
Root directory
File name Content
INDEX.XML Contains data for management
of the material on the disc.
a) Contains conversion tables for
ALIAS.XML
assigning user-defined names
to clips and clip lists.
DISCMETA.XML Contains metadata to indicate
the disc properties.
MEDIAPRO.XML Contains a list of material on
the disc, basic properties,
related information, and
information about access
methods.
Other files Files other than the above
a) Only when sub item "NAMING FORM" on the SETUP
>OPERATIONAL FUNCTION >FILE NAMING page is set to "free"
b) Only files which can be written by XDCAM
Clip directory
File name Content
Clip file created by recording
a)
C * .MXF
(MXF file)
: 0001 to 9999
*
a) Metadata file generated
C * M01.XML
automatically when C
is created.
: 0001 to 9999
*
Other files Files other than the above
a) The unit can handle files with user-defined names in the "C*" part.
b) Only files which are 2 seconds or longer in length, in a format matching
the format (system frequency) and recording format (MPEG HD/DVCAM
and number of audio channels) of the recorded sections of the disc, and
which can be overwritten by XDCAM.
c) Overwriting is not possible
d) Only when the Write Inhibit tab on the disc is set to enable recording and
"REC INH" is set to "OFF". Any clip may be selected and deleted.
e) Only files which can be written by XDCAM
f) When the "C*" part of a C*.MXF file name is changed, a C*M01.XML
file with the same name in the "C*" part is also changed automatically.
g) When a C*.MXF file is created, a C*M01.XML file with the same name
in the "C*" part is created automatically.
Read: Read data sequentially from the start to the end of
Partial read: Read only a part of the data in the file.
Write: Write data sequentially from the start to the end of
Partial write: Write data to a part of the file only.
Operations
Read/Partial read Write/Partial write Rename
Yes
Yes
Yes
Yes
–
Notes
• Directories cannot be created in the root directory.
• The directories in the root directory (Clip, Edit, Sub, and
General) cannot be deleted or renamed.
Operations
Read/Partial read Write/Partial write Rename
Yes
Yes
* .MXF file
–
h) When a C*.MXF file is deleted, the C*M01.XML file with the same name
in the "C*" part is also deleted automatically.
Notes
• Directories cannot be created in the Clip directory.
• When the following operations are carried out on a disc,
then it becomes impossible for version 1.4 and lower
XDCAM devices
the file.
the file.
No No
No No
b)
Yes No
No No
No –
b) c)
Yes Yes
e) f)
Yes No
No –
1)
to record new clips or delete existing
Create Delete
No No
No No
No No
No No
No –
Create Delete
b) d)
Yes Yes
g) h)
No No
No –
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