ProMC in ROOT

Hello,

It is possible to implement, maybe in ROOT6, the ProMC library?

atlaswww.hep.anl.gov/asc/promc/

it uses varints to store data in a more efficient way (file-size reduction can be as large as 30% compared to ROOT). It is also implemented in a number of HEP packages (Delphes, Pythia8 examples, and there is even a package to fill ProMC files in FORTRAN).

best, Sergei