6-1-2 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/ | Write/ | Rename | Create | Delete |
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| Partial read | Partial write |
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INDEX.XML | Contains data for management of | Yes | No | No | No | No |
| 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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| clips and clip lists. |
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DISCMETA.XML | Contains metadata to indicate the | Yes | Yes b) | No | No | No |
| disc properties. |
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MEDIAPRO.XML | Contains a list of material on the | Yes | No | No | No | No |
| disc, basic properties, related |
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| information, and information about |
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| access methods. |
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Other files | Files other than the above | − | No | − | No | − |
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a) Only when “NAMING FORM” on the FILE NAMING page of the |
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Notes |
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OPERATION menu is set to “FREE” |
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• | Directories cannot be created in the root directory. | |||
b) Only files which can be written by XDCAM | ||||
| • | 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/ | Write/ | Rename | Create | Delete |
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| Partial read | Partial write |
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C*.MXF a) | Clip file created by recording (MXF | Yes | No | No b) | Yes c) | Yes d) |
| file) |
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| *: 0001 to 4999 |
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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 is |
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| created. |
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| *: 0001 to 4999 |
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Other files | Files other than the above | − | No | − | No | − |
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Operations File 6 Chapter
a)With firmware version 1.5 and higher, files having a
b)Possible with firmware version 1.5 and higher.
c)Only files which are 2 seconds or longer in length, in a format matching the line mode format (525/625) and recording format (IMX50/IMX40/ IMX30/DVCAM and number of audio channels) of the recorded sections of the disc, and which can be overwritten by XDCAM.
d)Only when the Write Inhibit tab on the disc is set to enable recording. With firmware version 1.4x and lower, only the most recently recorded clip may be deleted. With firmware version 1.5 and higher, any clip may be selected and deleted.
e)Only files which can be written by XDCAM
f)With firmware version 1.5 and higher, 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, 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, supported by version 1.5 and higher XDCAM devices, are carried out on a disc, then it becomes impossible for version 1.4x and lower XDCAM devices to record new clips or delete existing