File operation restrictions, Root directory, Clip directory – Sony PDW-F70 User Manual

Page 76

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76

Overview

Chapt

er 5 F

ile Ope

rat

ions

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

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

• Directories cannot be created in the root directory.
• The directories in the root directory (Clip, Edit, Sub, and

General) cannot be deleted or renamed.

Clip directory

a) With firmware version 1.5 and higher, the unit can handle files with user-

defined names in the “C*” part.

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 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.

d) Only when the Write Inhibit tab on the disc is set to enable recording and

“REC INH” is set to “OFF”. With firmware version 1.1 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.

File name

Content

Operations

Read/Partial read Write/Partial write Rename

Create

Delete

INDEX.XML

Contains data for management
of the material on the disc.

Yes

No

No

No

No

ALIAS.XML

a)

Contains conversion tables for
assigning user-defined names
to clips and clip lists.

Yes

No

No

No

No

DISCMETA.XML

Contains metadata to indicate
the disc properties.

Yes

Yes

b)

No

No

No

MEDIAPRO.XML

Contains a list of material on
the disc, basic properties,
related information, and
information about access
methods.

Yes

No

No

No

No

Other files

Files other than the above

No

No

Notes

File name

Content

Operations

Read/Partial read Write/Partial write Rename

Create

Delete

C

*

.MXF

a)

Clip file created by recording
(MXF file)

*

: 0001 to 9999

Yes

No

No

b)

Yes

c)

Yes

d)

C

*

M01.XML

a)

Metadata file generated
automatically when C

*

.MXF file

is created.

*

: 0001 to 9999

Yes

Yes

e)

No

f)

No

g)

No

h)

Other files

Files other than the above

No

No

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