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10
(3) Directories and file organization
In order that DN-V1700 operates properly, data should be written on the media in prescribed directories and in the specified manner.
Directories other than what are prescribed here, should not be created.
2 File name
A file name is eight characters or less with alpha-numeric characters according to ASCII code.
Long file name (VFAT) is not supported.
Number: from 0 to 9, alphabet: A to Z, Symbol: _
2 Extension
• VIDEO and AUDIO Program stream: mpg
• VIDEO (with no AUDIO) Elementary stream: mpv
• Still picture: mpi
• AUDIO (with no VIDEO) MPEG1 Layer 2 Audio: mpa
• AUDIO (with no VIDEO) 16 bit Linear PCM: wav
• Script file (play list file): dsc
2 Directories
All the files should be stored in the following directories only.
No duplicate file names are accepted.
The maximum file numbers of VIDEO, SCRIPT, and an AUDIO directory is 999.
The number of the maximum files of a PICTURE directory is 9999.
Please be sure to create the VIDEO, SCRIPT, AUDIO and PICTURE directories irrespective of the existence of a file (If the media is
formatted by DN-V1700, these directories will automatically be created).
The SYS directory is used by the DN-V1700 to output log files, etc.
✽ DN-V1700 recognizes both fs = 48 kHz and 44.1 kHz for mpg, mpa and wav audio files.
It is, however, recommended that you stick to either of sampling frequencies.
DN-V1700 will need c.a.1 second to switch the sampling frequency mode.
\ROOT
\VIDEO
✽✽✽.mpg (MPEG2-PS (VIDEO and AUDIO))
✽✽✽.mpv (MPEG2-ES (VIDEO (with no AUDIO)))
\AUDIO
✽✽✽.mpa (MPEG1 Layer2 AUDIO (with no VIDEO))
✽✽✽.wav (16bit Linear PCM AUDIO (with no VIDEO))
\PICTURE
✽✽✽.mpi (MPEG2-ES (Still picture))
\SCRIPT
✽✽✽.dsc (script file (play list file))
\SYS
✽✽✽.log (log file)