Sony PDWF75 User Manual (PDW-F75 Professional Disc Recorder Operating Manual f - Page 81

Chapter 5 File Operations 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 INDEX.XML ALIAS.XML a) DISCMETA.XML MEDIAPRO.XML Other files Content Operations Read/Partial read Write/Partial write Rename Contains data for management Yes No No of the material on the disc. Contains conversion tables for Yes assigning user-defined names to clips and clip lists. Contains metadata to indicate Yes the disc properties. No No Yes b) No Contains a list of material on Yes No No the disc, basic properties, related information, and information about access methods. Files other than the above - No - Create No No No No No Delete No No No No - 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 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. Clip directory File name C*.MXF a) C*M01.XML a) Other files Content Operations Read/Partial read Write/Partial write Rename Clip file created by recording Yes (MXF file) *: 0001 to 9999 Yes b) c) Yes Metadata file generated Yes automatically when C*.MXF file is created. *: 0001 to 9999 Yes e) No f) Files other than the above - No - Create Yes b) No g) No Delete Yes d) No h) - 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. 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 1) to record new clips or delete existing 81 Overview