[NTLUG:Discuss] best/quickest to rename bunch files

[m m]

All:

Is there any best/quickest to rename cunch files?
I have files with extension name .JPG (upper case), I want to rename to .jpg 
(lower case).
I also want to rename files and keep the same secquence number, For example:
aaBB001.jpg, aaBB002.jpg aaBB004.jpg after fename
sAAbb001.jpg, sAAbb002.jpg, sAAbb004.jpg,
the name changes, the "number" keep the same, which have no xxxx003.jpg

anyone have suggestion?

Thanks




_________________________________________________________________
Tired of spam? Get advanced junk mail protection with MSN 8. 
http://join.msn.com/?page=features/junkmail