The 1D Mark II series of cameras records the number of shutter actuations in the shot data. This value is cummulative, so, for example,  when the shot count of a new camera reaches 9999 and rolls over the shutter count would be 10000, 10001, etc.

Some programs access this data (Breezebrowser Pro and Downloade Pro are two that I know) and it is a good way of easily ensuring that no two shots get the same ID.

The date with hundredths of a second accomplishes this as well, which is why I switched to Flashpipe.

I was talking about the cummulative shot number; equal to the actual number of shutter actuations.

Just purchaes the program based on hundredths of second file naming.

Something to add for the future - geotagging.

Hundredths of a second would work.

Thanks.

Would it be possible to add an option that would allow filenaming using the Canon embedded image sequence? This would only be of value to 1D Mark II (and maybe Mark I) owners, but it is a nice feature to easily ensure no duplicate file names. DownloaderPro has this feature. This would be the feature to make me swith to FlashPipe.

Thanks for considering.