Panasonic Lumix DC-S1, Owner'S Manual, Page: 89 / 520

5. Image Recording
89
0 Each folder can store up to 1000 files.
0
File numbers are assigned sequentially from 0001 to 9999 in the order of
recording.
If you change the storage folder, a number continuing on from the last file
number will be assigned.
0
In the following cases, a new folder with an incremented folder number will be
created automatically when the next file is saved:
– The number of files in the current folder reaches 1000.
– The file number reaches 9999.
0
New folders cannot be created when there are folders numbered from 100 all
the way up to 999.
We recommend backing up your data and formatting the card.
0 [Select Folder] is not available when [Backup Rec] in [Double Card Slot
Function] is being used.