Sony PDW-F70 File Operation Restrictions, Root directory, Clip directory

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.

Operations File 5 Chapter

Root directory

File name	Content	Operations
		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.
ALIAS.XML a)	Contains conversion tables for	Yes	No	No	No	No
	assigning user-defined names
	to clips and clip lists.
DISCMETA.XML	Contains metadata to indicate	Yes	Yes b)	No	No	No
	the disc properties.
MEDIAPRO.XML	Contains a list of material on	Yes	No	No	No	No
	the disc, basic properties,
	related information, and
	information about access
	methods.
Other files	Files other than the above	–	No	–	No	–

a) Only when sub item “NAMING FORM” on the SETUP
	Notes
>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

File name	Content	Operations
		Read/Partial read	Write/Partial write	Rename	Create	Delete
C*.MXF a)	Clip file created by recording	Yes	No	No b)	Yes c)	Yes d)
	(MXF file)
	*: 0001 to 9999
C*M01.XML a)	Metadata file generated	Yes	Yes e)	No f)	No g)	No h)
	automatically when C*.MXF file
	is created.
	*: 0001 to 9999
Other files	Files other than the above	–	No	–	No	–

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.

76 Overview