Curious about the "2V2A" prefix in my 7DmII photo numbering, can this be removed?

[thesun]

I've recently discovered that four digits just isn't enough for me to have easily definable photos, so if I have "2V2A7193.JPG" there's a good chance another identically named file is hanging around within a month or two.  I'd love to ditch the 2V2A and just have sequential numbering that goes for another 4 decimal places.  Is that possible?  I saw I can opt for "IMG_" in the settings but it didn't appear I could get rid of this completely. 

Any help would be wonderful, thank you in advance!

[jrhoffman75]

Use the free Canon DPP4 software to rename the files.

[thesun]

Thanks for the suggestion but I'm running Linux, this tool doesn't work for me, but more importantly, I'd like the camera to have more than 4 usable digits in the name.  That's the real question.  If it only goes to an effective 9999 before switching over again to 0000 that seems a waste of 4 digits in the filename.  Just hoping I could get it to name up to 99999999 before returning to zero.

[jrhoffman75]

All digital cameras use the DCIM file format which is a four character alpha-numeric prefix and a four digit file number, as well as the eight-dot-three general file name format. That's why the file name includes JPG, TIF, CR2. Your options are the camera-unique 2V2A prefix or IMG_.

I am sure there are file renaming tools for Linux.

[kvbarkley · Accepted solution]

Your Card is divided into subdirectories that only hold 1000 files, which set the index number:

[thesun]

Thanks, this is what I was looking for.  Seems arbitrary and silly to have identically named images in a single photoshoot, but that's a different issue.  Seems 9999 is the best one can do at the current time.  (And yes, there are file renaming tools for Linux.  That part's easy.)