C/H/P-mixed format prints ?

[forrest]

This is probably a dumb question but what does the C/H/P stand for in C/H/P-mixed format prints ?

 

Also does anyone know if the sorter that comes with frontier 570/5700's can handle 10" prints?

[Dave S]

It's a left over from the old days of APS film

C= Classic  4x6"

H= High Definition 4x7"

P= Panoramic 4x10"