Panasonic PT-L702SDE - Manual (Page 19)

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DCF standard
This projector can only play back image files which comply with the DCF specifica-
tion. The DCF specification imposes the following conditions. Image files or directo-
ries which do not conform to these conditions cannot be recognised by the projector.
Limits on directory names
Directories must be created as sub-directories of the DCIM directory on
the SD memory card.
B Data which is contained within any directory other than the DCIM directory
cannot be recognised.
Directory names must consist of three numerals (directory number)
followed by five alphanumeric characters. (Example: 100abcde)
B The three numerals must make up a number between 100 and 999, and
the alphanumeric characters can be taken from the following set of 37
characters: 0123456789abcdefghijklmnopqrstuvwxyz_ (No distinction is
made between upper-case and lower-case alphabetic characters. Double-
byte characters cannot be used.)
Multiple directories using the same three-digit combination (directory
number) cannot be created.
B For example, if two directories exist named "100abcde" and "100fghij"
respectively, the projector will not recognise them.
Directory sub-hierarchies are not supported.
B For example, if a directory called "323fghij" is created as a sub-directory of the
"102abcde" directory, the projector will not be able to recognise the sub-directory.
File names
File names must consist of four alphanumeric characters followed by
four numerals (file number), followed by ".jpg". (Example: abcd0001.jpg)
B The four numerals must make up a number between 0001 and 9999, and
the alphanumeric characters can be taken from the following set of 37
characters: 0123456789abcdefghijklmnopqrstuvwxyz_ (No distinction is
made between upper-case and lower-case alphabetic characters. Double-
byte characters cannot be used.)
Multiple file names using the same four-digit combination (file number)
cannot be created.
B For example, if two files exist named "abcd0001.jpg" and "efgh0001.jpg"
respectively, the projector cannot recognise them normally.
File format
B Only JPEG image files which comply with the Exif 2.1 standard are
recognised.