Canon EOS Rebel XS Instruction Manual page 26

Handy Features
[Auto reset]: Resets the file numbering to 0001 whenever the
card is replaced,
Each time you replace the card, the file numbering restarts from
0001. This is convenient if you want to organize images according to
cards.
However, if the replacement card contains images recorded
previously the file numbenng of the new images might continue from
the file numbering of the existing images in the card. To restart the
file numbering from 0001, you should use a newly-formatted card.
File numbering after _eplacing the card
File numbedng is _eset
[Mar_ual reset]: You can reset the file numbering to 0001 at any
time or for a new fomder.
When you reset the file numbering manually, a new folder is created
automatica}ly and the file numbering of images saved to that folder
starts from 0001 This is convenient when you want to use different
folders for the images taken yesterday and the ones taken today, for
example. After the manual reset, the file numbering returns to
continuous or auto reset.
if folder No. g99 is created, [Fomder number fug] will appear on the LCD
monitor, tf that folder contains images reaching file number 9999, shooting wi_i
not be possible even if the card still has storage capacity. The LCD monito[ will
display a message te replace the card. Replace with a new card.
[_ For both JPEG and RAWimages, the file name will start with 'qMG". The
extension will be _.JPG _' f or JPEG images and '_.CR2 _for RAW images.
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