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.
Read: Read data sequentially from the start to the end of the file.
Partial read: Read only a part of the data in the file.
Write: Write data sequentially from the start to the end of the file.
Partial write: Write data to a part of the file only.
Root directory
File name | Content | Operations |
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| Read/Partial read | Write/Partial write | Rename | Create | Delete |
INDEX.XML | Contains data for management | Yes | No | No | No | No |
| of the material on the disc. |
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ALIAS.XML a) | Contains conversion tables for | Yes | No | No | No | No |
| assigning |
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| to clips and clip lists. |
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DISCMETA.XML | Contains metadata to indicate | Yes | Yes b) | No | No | No |
| the disc properties. |
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MEDIAPRO.XML | Contains a list of material on | Yes | No | No | No | No |
| the disc, basic properties, |
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| related information, and |
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| information about access |
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| methods. |
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SYSPRO.XML | Contains information about | Yes | No | No | No | No |
| device system settings and |
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| menu settings. |
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Other files | Files other than the above | – | No | – | No | – |
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a) Only when sub item NAMING FORM of setup menu item 036 is set to |
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Notes |
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“free” |
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b) Only files which can be written by XDCAM | • | Directories cannot be created in the root directory. | |
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| • | The directories in the root directory (Clip, Edit, Sub, and | |
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| General) cannot be deleted or renamed. | |
Clip directory
File name | Content | Operations |
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| Read/Partial read | Write/Partial write | Rename | Create | Delete |
C*.MXF a) | Clip file created by recording | Yes | Yes b) c) | Yes | Yes b) | Yes d) |
| (MXF file) |
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| *: 0001 to 9999 |
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C*M01.XML a) | Metadata file generated | Yes | Yes e) | No f) | No g) | No h) |
| automatically when C*.MXF file |
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| is created. |
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| *: 0001 to 9999 |
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Other files | Files other than the above | – | No | – | No | – |
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Operations File 6 Chapter
a)The unit can handle files with
b)Only files which are 2 seconds or longer in length, in a format matching the format (system frequency) and recording format (MPEG HD 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 INHI” 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.
h)When a C*.MXF file is deleted, a C*M01.XML file with the same name in the “C*” part is also deleted automatically.
Overview 75